Convert Hungarian Forint (HUF) to Romanian Leu (RON)

1 hungarian_forint = 1 hungarian_forint

Exchange rates last updated: June 22, 2025 15:00

Conversion Formula for Hungarian Forint to Romanian Leu

The formula of conversion of Hungarian Forint to Romanian Leu is very simple. To convert Hungarian Forint to Romanian Leu, we can use this simple formula:

1 Hungarian Forint = 80.0217869416 Romanian Leu

1 Romanian Leu = 0.0124965967 Hungarian Forint

One Hungarian Forint is equal to 80.0217869416 Romanian Leu. So, we need to multiply the number of Hungarian Forint by 80.0217869416 to get the no of Romanian Leu. This formula helps when we need to change the measurements from Hungarian Forint to Romanian Leu

Hungarian Forint to Romanian Leu Conversion

The conversion of Hungarian Forint currency to Hungarian Forint currency is very simple. Since, as discussed above, One Hungarian Forint is equal to 80.0217869416 Romanian Leu. So, to convert Hungarian Forint to Romanian Leu, we must multiply no of Hungarian Forint to 80.0217869416. Example:-

Hungarian Forint Romanian Leu
0.01 Hungarian Forint 0.8002178694 Romanian Leu
0.1 Hungarian Forint 8.0021786942 Romanian Leu
1 Hungarian Forint 80.0217869416 Romanian Leu
2 Hungarian Forint 160.0435738832 Romanian Leu
3 Hungarian Forint 240.0653608247 Romanian Leu
5 Hungarian Forint 400.1089347079 Romanian Leu
10 Hungarian Forint 800.2178694158 Romanian Leu
20 Hungarian Forint 1,600.4357388316 Romanian Leu
50 Hungarian Forint 4,001.089347079 Romanian Leu
100 Hungarian Forint 8,002.1786941581 Romanian Leu
500 Hungarian Forint 40,010.8934707904 Romanian Leu
1,000 Hungarian Forint 80,021.7869415808 Romanian Leu

Details for Hungarian Forint (HUF) Currency

Introduction : The Hungarian Forint (HUF), symbolized by “Ft”, is the official currency of Hungary. Introduced in 1946, the forint replaced the pengő and helped stabilize the post-war Hungarian economy. The currency is issued and regulated by the Hungarian National Bank and is widely used in daily life, from retail transactions to public services. Although Hungary is a member of the European Union, it has not adopted the euro, making the forint a unique national symbol of economic independence. The forint plays a central role in both domestic trade and financial operations, serving as a bridge between Eastern and Western European economies.

History & Origin : The forint has a long historical lineage, with its name derived from the city of Florence, where gold coins called 'fiorino d'oro' were minted in the 13th century. Hungary adopted the original version of the forint in the 14th century, but the modern forint was introduced on August 1, 1946, following World War II, to address the worst recorded case of hyperinflation in history caused by the pengő. The forint initially maintained a fixed exchange rate but transitioned to a more flexible regime in the 1990s. Since then, Hungary has modernized its banking and financial systems, and the forint has undergone several redesigns to include improved security features.

Current Use : The Hungarian Forint is used for all forms of commerce and government transactions within Hungary. From supermarkets to transportation services, prices are listed and paid in forint. While the euro is accepted in some tourist areas, the forint remains the standard for everyday economic activity. In recent years, Hungary has expanded its digital payment infrastructure, allowing for wider use of electronic forint transactions. Though there have been discussions about euro adoption, the forint remains a strong representation of national identity and economic policy. Its continued use reflects a strategic choice to maintain monetary independence while still engaging actively with the EU and global markets.

Details of Hungary

Hungary is a landlocked country located in Central Europe, bordered by Austria, Slovakia, Ukraine, Romania, Serbia, Croatia, and Slovenia. Its capital, Budapest, is one of Europe's most iconic cities, known for its historic architecture, thermal baths, and cultural landmarks that straddle both sides of the Danube River.

Hungary has a rich history dating back to the Roman Empire, the Magyar conquest in the 9th century, and its significant role in the Austro-Hungarian Empire. The country transitioned from communism to democracy in the early 1990s, and it has since become a member of the European Union and NATO, while maintaining its unique national character and traditions.

The nation boasts a strong cultural identity, particularly in the fields of classical music, literature, science, and cuisine. Hungarian dishes like goulash, paprika chicken, and chimney cakes are beloved both locally and internationally. The Hungarian language (Magyar) is unique in Europe, unrelated to most of its neighbors’ tongues.

Hungary's economy is diversified, with strong sectors in manufacturing, agriculture, pharmaceuticals, IT, and tourism. Budapest acts as an economic hub, attracting international investment and digital startups. The country has invested heavily in infrastructure, education, and technological innovation in recent decades.

Tourism is vital, with attractions ranging from medieval castles and wine regions to UNESCO World Heritage sites and wellness resorts. Hungary’s strategic location also makes it an important corridor between Western Europe and the Balkans. Despite some political controversies in recent years, Hungary remains a vibrant, evolving nation rooted in deep historical legacies and modern aspirations.

Details for Romanian Leu (RON) Currency

Introduction : The Romanian Leu (RON), denoted by the symbol 'lei', is the official currency of Romania. As the primary medium of exchange in the country, it plays a vital role in the Romanian economy, facilitating trade, investments, and day-to-day transactions. The leu is subdivided into 100 bani. It is issued and regulated by the National Bank of Romania, which ensures the currency's stability and liquidity. The leu has undergone major reforms to align with modern financial standards, especially in preparation for Romania's future adoption of the euro. The currency is widely accepted in both cash and electronic forms across the country.

History & Origin : The Romanian Leu has a complex and evolving history, first introduced in 1867 during Romania's drive toward modernization. The term 'leu', meaning 'lion', originates from old Dutch thalers which featured a lion emblem. Over time, Romania has issued multiple versions of the leu due to economic instability, including hyperinflation in the 1990s. In 2005, the fourth leu (RON) was introduced, replacing the third leu (ROL) at a rate of 10,000 to 1 as part of a currency redenomination. This modern version has helped stabilize the economy and bring it closer in line with European Union standards, with a long-term goal of joining the eurozone.

Current Use : The Romanian Leu is the sole legal tender in Romania and is used in all financial and commercial activities across the country. It is utilized in banking, trade, taxation, and consumer transactions. While Romania is a member of the European Union, it has not yet adopted the euro, although plans for euro adoption remain a long-term objective. With increasing digitalization, Romanians frequently use electronic payment systems, credit/debit cards, and mobile banking. The leu is accepted throughout the country, and ATMs and currency exchange services are widely available, especially in urban centers and tourist areas.

Details of Romania

Romania is a diverse and culturally rich country located in Southeastern Europe, bordered by Hungary, Serbia, Bulgaria, Ukraine, Moldova, and the Black Sea. It has a population of around 19 million people and its capital and largest city is Bucharest. Romania is known for its varied landscapes, ranging from the Carpathian Mountains to the rolling plains and the scenic Danube River Delta. The country is home to medieval castles, fortified churches, and picturesque villages, including the famous Bran Castle, often associated with the Dracula legend.

Romania has a long and complex history, with roots tracing back to the ancient Dacians and Romans, from whom the country derives its name. It became a modern unified state in 1859 and declared independence from the Ottoman Empire in 1877. The country experienced major political changes during the 20th century, including periods of monarchy, dictatorship, and communism. In 1989, Romania transitioned from a communist regime to a democratic republic, and in 2007, it joined the European Union.

Today, Romania is a developing country with a growing market economy. It has made significant progress in sectors like information technology, manufacturing, energy, and tourism. Its economy benefits from a young, educated workforce and strategic geographic location. The country’s natural beauty, including the Transfăgărășan Highway and the Carpathians, makes it an emerging tourist destination. Romania is also working on infrastructure development and digital transformation to boost its competitiveness in the EU and global markets. Despite some economic and political challenges, Romania remains a dynamic and promising country in Eastern Europe.

Convert Hungarian Forint to Other Currencies

Hungarian Forint to United Arab Emirates DirhamUnited Arab Emirates Dirham to Hungarian Forint
Hungarian Forint to Afghan AfghaniAfghan Afghani to Hungarian Forint
Hungarian Forint to Albanian LekAlbanian Lek to Hungarian Forint
Hungarian Forint to Armenian DramArmenian Dram to Hungarian Forint
Hungarian Forint to Netherlands Antillean GuilderNetherlands Antillean Guilder to Hungarian Forint
Hungarian Forint to Angolan KwanzaAngolan Kwanza to Hungarian Forint
Hungarian Forint to Argentine PesoArgentine Peso to Hungarian Forint
Hungarian Forint to Australian DollarAustralian Dollar to Hungarian Forint
Hungarian Forint to Aruban FlorinAruban Florin to Hungarian Forint
Hungarian Forint to Azerbaijani ManatAzerbaijani Manat to Hungarian Forint
Hungarian Forint to Bosnia Herzegovina Convertible MarkBosnia Herzegovina Convertible Mark to Hungarian Forint
Hungarian Forint to Barbadian DollarBarbadian Dollar to Hungarian Forint
Hungarian Forint to Bangladeshi TakaBangladeshi Taka to Hungarian Forint
Hungarian Forint to Bulgarian LevBulgarian Lev to Hungarian Forint
Hungarian Forint to Bahraini DinarBahraini Dinar to Hungarian Forint
Hungarian Forint to Burundian FrancBurundian Franc to Hungarian Forint
Hungarian Forint to Bermudan DollarBermudan Dollar to Hungarian Forint
Hungarian Forint to Brunei DollarBrunei Dollar to Hungarian Forint
Hungarian Forint to Bolivian BolivianoBolivian Boliviano to Hungarian Forint
Hungarian Forint to Brazilian RealBrazilian Real to Hungarian Forint
Hungarian Forint to Bahamian DollarBahamian Dollar to Hungarian Forint
Hungarian Forint to Bhutanese NgultrumBhutanese Ngultrum to Hungarian Forint
Hungarian Forint to Botswanan PulaBotswanan Pula to Hungarian Forint
Hungarian Forint to Belarusian RubleBelarusian Ruble to Hungarian Forint
Hungarian Forint to Belize DollarBelize Dollar to Hungarian Forint
Hungarian Forint to Canadian DollarCanadian Dollar to Hungarian Forint
Hungarian Forint to Congolese FrancCongolese Franc to Hungarian Forint
Hungarian Forint to Swiss FrancSwiss Franc to Hungarian Forint
Hungarian Forint to Chilean Unit Of Account UfChilean Unit Of Account Uf to Hungarian Forint
Hungarian Forint to Chilean PesoChilean Peso to Hungarian Forint
Hungarian Forint to Chinese Yuan OffshoreChinese Yuan Offshore to Hungarian Forint
Hungarian Forint to Chinese YuanChinese Yuan to Hungarian Forint
Hungarian Forint to Colombian PesoColombian Peso to Hungarian Forint
Hungarian Forint to Costa Rican ColonCosta Rican Colon to Hungarian Forint
Hungarian Forint to Cuban Convertible PesoCuban Convertible Peso to Hungarian Forint
Hungarian Forint to Cuban PesoCuban Peso to Hungarian Forint
Hungarian Forint to Cape Verdean EscudoCape Verdean Escudo to Hungarian Forint
Hungarian Forint to Czech Republic KorunaCzech Republic Koruna to Hungarian Forint
Hungarian Forint to Djiboutian FrancDjiboutian Franc to Hungarian Forint
Hungarian Forint to Danish KroneDanish Krone to Hungarian Forint
Hungarian Forint to Dominican PesoDominican Peso to Hungarian Forint
Hungarian Forint to Algerian DinarAlgerian Dinar to Hungarian Forint
Hungarian Forint to Egyptian PoundEgyptian Pound to Hungarian Forint
Hungarian Forint to Eritrean NakfaEritrean Nakfa to Hungarian Forint
Hungarian Forint to Ethiopian BirrEthiopian Birr to Hungarian Forint
Hungarian Forint to EuroEuro to Hungarian Forint
Hungarian Forint to Fijian DollarFijian Dollar to Hungarian Forint
Hungarian Forint to Falkland Islands PoundFalkland Islands Pound to Hungarian Forint
Hungarian Forint to British Pound SterlingBritish Pound Sterling to Hungarian Forint
Hungarian Forint to Georgian LariGeorgian Lari to Hungarian Forint
Hungarian Forint to Guernsey PoundGuernsey Pound to Hungarian Forint
Hungarian Forint to Ghanaian CediGhanaian Cedi to Hungarian Forint
Hungarian Forint to Gibraltar PoundGibraltar Pound to Hungarian Forint
Hungarian Forint to Gambian DalasiGambian Dalasi to Hungarian Forint
Hungarian Forint to Guinean FrancGuinean Franc to Hungarian Forint
Hungarian Forint to Guatemalan QuetzalGuatemalan Quetzal to Hungarian Forint
Hungarian Forint to Guyanaese DollarGuyanaese Dollar to Hungarian Forint
Hungarian Forint to Hong Kong DollarHong Kong Dollar to Hungarian Forint
Hungarian Forint to Honduran LempiraHonduran Lempira to Hungarian Forint
Hungarian Forint to Haitian GourdeHaitian Gourde to Hungarian Forint
Hungarian Forint to Indonesian RupiahIndonesian Rupiah to Hungarian Forint
Hungarian Forint to Israeli New SheqelIsraeli New Sheqel to Hungarian Forint
Hungarian Forint to Manx PoundManx Pound to Hungarian Forint
Hungarian Forint to Indian RupeeIndian Rupee to Hungarian Forint
Hungarian Forint to Iraqi DinarIraqi Dinar to Hungarian Forint
Hungarian Forint to Iranian RialIranian Rial to Hungarian Forint
Hungarian Forint to Icelandic KronaIcelandic Krona to Hungarian Forint
Hungarian Forint to Jersey PoundJersey Pound to Hungarian Forint
Hungarian Forint to Jamaican DollarJamaican Dollar to Hungarian Forint
Hungarian Forint to Jordanian DinarJordanian Dinar to Hungarian Forint
Hungarian Forint to Japanese YenJapanese Yen to Hungarian Forint
Hungarian Forint to Kenyan ShillingKenyan Shilling to Hungarian Forint
Hungarian Forint to Kyrgystani SomKyrgystani Som to Hungarian Forint
Hungarian Forint to Cambodian RielCambodian Riel to Hungarian Forint
Hungarian Forint to Comorian FrancComorian Franc to Hungarian Forint
Hungarian Forint to North Korean WonNorth Korean Won to Hungarian Forint
Hungarian Forint to South Korean WonSouth Korean Won to Hungarian Forint
Hungarian Forint to Kuwaiti DinarKuwaiti Dinar to Hungarian Forint
Hungarian Forint to Cayman Islands DollarCayman Islands Dollar to Hungarian Forint
Hungarian Forint to Kazakhstani TengeKazakhstani Tenge to Hungarian Forint
Hungarian Forint to Laotian KipLaotian Kip to Hungarian Forint
Hungarian Forint to Lebanese PoundLebanese Pound to Hungarian Forint
Hungarian Forint to Sri Lankan RupeeSri Lankan Rupee to Hungarian Forint
Hungarian Forint to Liberian DollarLiberian Dollar to Hungarian Forint
Hungarian Forint to Lesotho LotiLesotho Loti to Hungarian Forint
Hungarian Forint to Libyan DinarLibyan Dinar to Hungarian Forint
Hungarian Forint to Moroccan DirhamMoroccan Dirham to Hungarian Forint
Hungarian Forint to Moldovan LeuMoldovan Leu to Hungarian Forint
Hungarian Forint to Malagasy AriaryMalagasy Ariary to Hungarian Forint
Hungarian Forint to Macedonian DenarMacedonian Denar to Hungarian Forint
Hungarian Forint to Myanma KyatMyanma Kyat to Hungarian Forint
Hungarian Forint to Mongolian TugrikMongolian Tugrik to Hungarian Forint
Hungarian Forint to Macanese PatacaMacanese Pataca to Hungarian Forint
Hungarian Forint to Mauritanian OuguiyaMauritanian Ouguiya to Hungarian Forint
Hungarian Forint to Mauritian RupeeMauritian Rupee to Hungarian Forint
Hungarian Forint to Maldivian RufiyaaMaldivian Rufiyaa to Hungarian Forint
Hungarian Forint to Malawian KwachaMalawian Kwacha to Hungarian Forint
Hungarian Forint to Mexican PesoMexican Peso to Hungarian Forint
Hungarian Forint to Malaysian RinggitMalaysian Ringgit to Hungarian Forint
Hungarian Forint to Mozambican MeticalMozambican Metical to Hungarian Forint
Hungarian Forint to Namibian DollarNamibian Dollar to Hungarian Forint
Hungarian Forint to Nigerian NairaNigerian Naira to Hungarian Forint
Hungarian Forint to Nicaraguan CordobaNicaraguan Cordoba to Hungarian Forint
Hungarian Forint to Norwegian KroneNorwegian Krone to Hungarian Forint
Hungarian Forint to Nepalese RupeeNepalese Rupee to Hungarian Forint
Hungarian Forint to New Zealand DollarNew Zealand Dollar to Hungarian Forint
Hungarian Forint to Omani RialOmani Rial to Hungarian Forint
Hungarian Forint to Panamanian BalboaPanamanian Balboa to Hungarian Forint
Hungarian Forint to Peruvian Nuevo SolPeruvian Nuevo Sol to Hungarian Forint
Hungarian Forint to Papua New Guinean KinaPapua New Guinean Kina to Hungarian Forint
Hungarian Forint to Philippine PesoPhilippine Peso to Hungarian Forint
Hungarian Forint to Pakistani RupeePakistani Rupee to Hungarian Forint
Hungarian Forint to Polish ZlotyPolish Zloty to Hungarian Forint
Hungarian Forint to Paraguayan GuaraniParaguayan Guarani to Hungarian Forint
Hungarian Forint to Qatari RialQatari Rial to Hungarian Forint
Hungarian Forint to Romanian LeuRomanian Leu to Hungarian Forint
Hungarian Forint to Serbian DinarSerbian Dinar to Hungarian Forint
Hungarian Forint to Russian RubleRussian Ruble to Hungarian Forint
Hungarian Forint to Rwandan FrancRwandan Franc to Hungarian Forint
Hungarian Forint to Saudi RiyalSaudi Riyal to Hungarian Forint
Hungarian Forint to Solomon Islands DollarSolomon Islands Dollar to Hungarian Forint
Hungarian Forint to Seychellois RupeeSeychellois Rupee to Hungarian Forint
Hungarian Forint to Sudanese PoundSudanese Pound to Hungarian Forint
Hungarian Forint to Swedish KronaSwedish Krona to Hungarian Forint
Hungarian Forint to Singapore DollarSingapore Dollar to Hungarian Forint
Hungarian Forint to Saint Helena PoundSaint Helena Pound to Hungarian Forint
Hungarian Forint to Sierra Leonean LeoneSierra Leonean Leone to Hungarian Forint
Hungarian Forint to Somali ShillingSomali Shilling to Hungarian Forint
Hungarian Forint to Surinamese DollarSurinamese Dollar to Hungarian Forint
Hungarian Forint to South Sudanese PoundSouth Sudanese Pound to Hungarian Forint
Hungarian Forint to Sao Tome And Principe DobraSao Tome And Principe Dobra to Hungarian Forint
Hungarian Forint to Salvadoran ColonSalvadoran Colon to Hungarian Forint
Hungarian Forint to Syrian PoundSyrian Pound to Hungarian Forint
Hungarian Forint to Swazi LilangeniSwazi Lilangeni to Hungarian Forint
Hungarian Forint to Thai BahtThai Baht to Hungarian Forint
Hungarian Forint to Tajikistani SomoniTajikistani Somoni to Hungarian Forint
Hungarian Forint to Turkmenistani ManatTurkmenistani Manat to Hungarian Forint
Hungarian Forint to Tunisian DinarTunisian Dinar to Hungarian Forint
Hungarian Forint to Tongan PaangaTongan Paanga to Hungarian Forint
Hungarian Forint to Turkish LiraTurkish Lira to Hungarian Forint
Hungarian Forint to Trinidad And Tobago DollarTrinidad And Tobago Dollar to Hungarian Forint
Hungarian Forint to New Taiwan DollarNew Taiwan Dollar to Hungarian Forint
Hungarian Forint to Tanzanian ShillingTanzanian Shilling to Hungarian Forint
Hungarian Forint to Ukrainian HryvniaUkrainian Hryvnia to Hungarian Forint
Hungarian Forint to Ugandan ShillingUgandan Shilling to Hungarian Forint
Hungarian Forint to United States DollarUnited States Dollar to Hungarian Forint
Hungarian Forint to Uruguayan PesoUruguayan Peso to Hungarian Forint
Hungarian Forint to Uzbekistan SomUzbekistan Som to Hungarian Forint
Hungarian Forint to Venezuelan Bolivar SoberanoVenezuelan Bolivar Soberano to Hungarian Forint
Hungarian Forint to Vietnamese DongVietnamese Dong to Hungarian Forint
Hungarian Forint to Vanuatu VatuVanuatu Vatu to Hungarian Forint
Hungarian Forint to Samoan TalaSamoan Tala to Hungarian Forint
Hungarian Forint to Cfa Franc BeacCfa Franc Beac to Hungarian Forint
Hungarian Forint to Silver Troy OunceSilver Troy Ounce to Hungarian Forint
Hungarian Forint to Gold Troy OunceGold Troy Ounce to Hungarian Forint
Hungarian Forint to East Caribbean DollarEast Caribbean Dollar to Hungarian Forint
Hungarian Forint to Special Drawing RightsSpecial Drawing Rights to Hungarian Forint
Hungarian Forint to Cfa Franc BceaoCfa Franc Bceao to Hungarian Forint
Hungarian Forint to Palladium OuncePalladium Ounce to Hungarian Forint
Hungarian Forint to Cfp FrancCfp Franc to Hungarian Forint
Hungarian Forint to Platinum OuncePlatinum Ounce to Hungarian Forint
Hungarian Forint to Yemeni RialYemeni Rial to Hungarian Forint
Hungarian Forint to South African RandSouth African Rand to Hungarian Forint
Hungarian Forint to Zambian KwachaZambian Kwacha to Hungarian Forint

FAQ on Hungarian Forint (HUF) to Romanian Leu (RON) Conversion:

What is the Symbol of Hungarian Forint and Romanian Leu?

The symbol for Hungarian Forint is 'Ft', and for Romanian Leus, it is 'lei'. These symbols are used to denote in everyday currency analysis.

How to convert Hungarian Forint(s) to Romanian Leu(es)?

To convert Hungarian Forint(s) to Romanian Leu(es), multiply the number of Hungarian Forints by 80.021786941581 because one Hungarian Forint equals 80.021786941581 Romanian Leus.
Formula: Romanian Leus = Hungarian Forints × 80.021786941581.
This is a standard rule used in conversions.

How to convert Romanian Leu(es) to Hungarian Forint(s) ?

To convert Romanian Leu(es) to Hungarian Forint(s), divide the number of Romanian Leus by 80.021786941581, since, 1 Hungarian Forint contains exactly 80.021786941581 Romanian Leu(es).
Formula: Hungarian Forints = Romanian Leu(s) ÷ 80.021786941581.
It’s a common calculation in conversions.

How many Hungarian Forint(s) are these in an Romanian Leu(es) ?

There are 0.012496596717217 Hungarian Forints in one Romanian Leu. This is derived by dividing 1 Romanian Leu by 80.021786941581, as 1 Hungarian Forint equals 80.021786941581 Romanian Leu(s).
Formula: Hungarian Forint = Romanian Leus ÷ 80.021786941581.
It’s a precise currency conversion method.

How many Romanian Leu(es) are these in an Hungarian Forint(s) ?

There are exactly 80.021786941581 Romanian Leus in one Hungarian Forint. This is a fixed value used in the measurement system.
Formula: Romanian Leu(s) = Hungarian Forints × 80.021786941581.
It's one of the most basic conversions.

How many Romanian Leu in 10 Hungarian Forint?

There are 800.21786941581 Romanian Leus in 10 Hungarian Forints. This is calculated by multiplying 10 by 80.021786941581.
Formula: 10 Hungarian Forints × 80.021786941581 = 800.21786941581 Romanian Leus.
This conversion is helpful for measurements.

How many Romanian Leu(s) in 50 Hungarian Forint?

There are 4001.089347079 Romanian Leus in 50 Hungarian Forints. One can calculate it by multiplying 50 by 80.021786941581.
Formula: 50 Hungarian Forints × 80.021786941581 = 4001.089347079 Romanian Leus.
This conversion is used in many applications.

How many Romanian Leu(s) in 100 Hungarian Forint?

There are 8002.1786941581 Romanian Leu(s) in 100 Hungarian Forints. Multiply 100 by 80.021786941581 to get the result.
Formula: 100 Hungarian Forints × 80.021786941581 = 8002.1786941581 Romanian Leu(s).
This is a basic currency conversion formula.