Convert Comorian Franc (KMF) to Vanuatu Vatu (VUV)

1 comorian_franc = 1 comorian_franc

Exchange rates last updated: August 9, 2025 15:00

Conversion Formula for Comorian Franc to Vanuatu Vatu

The formula of conversion of Comorian Franc to Vanuatu Vatu is very simple. To convert Comorian Franc to Vanuatu Vatu, we can use this simple formula:

1 Comorian Franc = 3.5440068437 Vanuatu Vatu

1 Vanuatu Vatu = 0.282166498 Comorian Franc

One Comorian Franc is equal to 3.5440068437 Vanuatu Vatu. So, we need to multiply the number of Comorian Franc by 3.5440068437 to get the no of Vanuatu Vatu. This formula helps when we need to change the measurements from Comorian Franc to Vanuatu Vatu

Comorian Franc to Vanuatu Vatu Conversion

The conversion of Comorian Franc currency to Vanuatu Vatu currency is very simple. Since, as discussed above, One Comorian Franc is equal to 3.5440068437 Vanuatu Vatu. So, to convert Comorian Franc to Vanuatu Vatu, we must multiply no of Comorian Franc to 3.5440068437. Example:-

Comorian Franc Vanuatu Vatu
0.01 Comorian Franc 0.0354400684 Vanuatu Vatu
0.1 Comorian Franc 0.3544006844 Vanuatu Vatu
1 Comorian Franc 3.5440068437 Vanuatu Vatu
2 Comorian Franc 7.0880136874 Vanuatu Vatu
3 Comorian Franc 10.6320205311 Vanuatu Vatu
5 Comorian Franc 17.7200342185 Vanuatu Vatu
10 Comorian Franc 35.4400684371 Vanuatu Vatu
20 Comorian Franc 70.8801368742 Vanuatu Vatu
50 Comorian Franc 177.2003421854 Vanuatu Vatu
100 Comorian Franc 354.4006843709 Vanuatu Vatu
500 Comorian Franc 1,772.0034218544 Vanuatu Vatu
1,000 Comorian Franc 3,544.0068437087 Vanuatu Vatu

Details for Comorian Franc (KMF) Currency

Introduction : The Comorian Franc (KMF) is the official currency of the Union of the Comoros, a small island nation in the Indian Ocean. Denoted by the symbol CF, the currency is used for all forms of daily transactions across the country. It is issued and regulated by the Central Bank of the Comoros and exists in both coins and banknotes of various denominations. The Comorian Franc is pegged to the euro, helping to stabilize its value and maintain monetary confidence in the local economy. Though relatively lesser-known globally, the KMF plays a crucial role in the livelihoods and commerce of Comorian citizens.

History & Origin : The Comorian Franc has a history closely linked to the French colonial era. Initially, the French franc circulated in Comoros during its time as a French overseas territory. In 1979, after gaining independence, Comoros introduced its own version of the franc—the Comorian Franc—under an agreement with France. This agreement also established the currency’s fixed exchange rate with the French franc, and later with the euro. The monetary arrangement with France ensures that the currency remains stable and convertible, supported by France’s guarantee. Over the years, banknotes have been redesigned to include security features and national imagery, reflecting Comorian heritage and sovereignty.

Current Use : The Comorian Franc is used across the three main islands of the Union of the Comoros—Grande Comore, Anjouan, and Mohéli—for all domestic transactions. It is commonly employed in markets, transportation, local trade, and services. As the country imports many goods, the currency’s peg to the euro helps control inflation and reduce currency fluctuations. While informal use of foreign currency is limited, the KMF remains the dominant medium of exchange. In rural and urban areas alike, people use physical cash more than digital means. However, with gradual financial development, there is an increasing effort to promote digital banking and financial inclusion in Comoros.

Details of Comoros

The Union of the Comoros is a small island nation located off the eastern coast of Africa, nestled between northern Madagascar and Mozambique in the Indian Ocean. It consists of three main islands—Grande Comore (Ngazidja), Mohéli (Mwali), and Anjouan (Nzwani)—and several smaller islets. Known for its stunning beaches, volcanic landscapes, and rich biodiversity, Comoros is often referred to as the "Perfume Isles" due to its historical production of ylang-ylang, vanilla, and cloves.

Comoros has a deeply intertwined cultural identity shaped by African, Arab, and French influences. The majority of the population practices Islam, and Arabic, French, and Comorian (Shikomori) are the official languages. The country's traditions, music, clothing, and architecture all reflect this unique cultural fusion. Social life revolves around family, community events, and Islamic festivals that bring people together in vibrant celebration.

Despite its natural beauty, Comoros faces several economic and developmental challenges. It remains one of the least developed countries in the world, with an economy reliant on agriculture, fishing, and remittances from the diaspora. However, the government has taken steps to improve infrastructure, tourism, and education, with support from international partners. Its small size and geographic isolation present obstacles, but also opportunities for niche development in eco-tourism and sustainable farming.

Politically, Comoros has experienced instability and power struggles over the years, though recent efforts have aimed to strengthen democratic institutions and national unity. The people of Comoros are known for their resilience, hospitality, and strong community values. As the country works to improve living standards and attract investment, it remains a hidden gem of the Indian Ocean—rich in culture, nature, and untapped potential.

Details for Vanuatu Vatu (VUV) Currency

Introduction : The Vanuatu Vatu (VUV), symbolized as VT, is the official currency of the Republic of Vanuatu. Introduced after the nation’s independence, the vatu plays a central role in supporting the local economy and symbolizes Vanuatu’s financial autonomy. It is a non-decimal currency, meaning it has no subdivisions like cents. Issued by the Reserve Bank of Vanuatu, the vatu is used in all domestic transactions, from everyday purchases in village markets to tourism and government operations. The currency reflects the country’s cultural identity and economic development, especially in a diverse island nation with a unique blend of tradition and modern growth.

History & Origin : The Vanuatu Vatu was introduced in 1981, a year after Vanuatu gained independence from a joint British-French colonial rule. It replaced the New Hebrides franc at par, marking the beginning of a sovereign monetary system. Before independence, the islands used various currencies including the Australian dollar and the franc. The introduction of the vatu represented a major step toward economic self-determination and national identity. Since its inception, the currency has undergone minor design changes, but its value has remained relatively stable due to prudent monetary policies. The Reserve Bank of Vanuatu was established to oversee currency issuance, financial regulation, and economic stability.

Current Use : The vatu is used throughout Vanuatu as the legal tender for all transactions including wages, government payments, retail purchases, and tourism services. Coins are commonly used in small denominations, while banknotes are utilized for larger amounts. Due to the country’s reliance on agriculture, fishing, and tourism, the vatu is integral in both rural barter-based economies and formal commercial sectors. While the vatu is not commonly traded on international markets, foreign currencies such as the Australian dollar are occasionally accepted in tourist-heavy areas. The Reserve Bank maintains currency integrity and promotes financial literacy and inclusion across the archipelago.

Details of Vanuatu

Vanuatu is an island nation located in the South Pacific Ocean, comprising roughly 83 islands that form a Y-shaped archipelago. It lies east of Australia, northeast of New Caledonia, and west of Fiji. The capital city, Port Vila, is situated on the island of Efate and serves as the political and economic hub of the country. Vanuatu is known for its stunning natural beauty, including volcanic mountains, coral reefs, lush rainforests, and pristine beaches.

Vanuatu’s history is rich with Melanesian culture and European colonial influences. Originally inhabited by Indigenous Melanesian peoples for thousands of years, the islands were later colonized by both the British and the French, forming the unique Anglo-French Condominium known as the New Hebrides. Vanuatu gained full independence in 1980 and established a parliamentary democracy.

The population of Vanuatu is ethnically diverse and primarily rural, with more than 100 languages spoken across the islands, making it one of the most linguistically diverse countries per capita. Bislama, English, and French are the official languages, and Bislama, a creole language, is widely used in daily communication. Traditional customs, known as “kastom,” remain strong and influence social and community life.

The economy of Vanuatu is based on agriculture, fishing, tourism, and offshore financial services. The majority of the population engages in subsistence farming, while tourism—especially eco-tourism and adventure travel—plays a growing role in economic development. The country is vulnerable to natural disasters such as cyclones and volcanic eruptions, which pose challenges to infrastructure and sustainability.

Vanuatu is internationally recognized for its environmental initiatives and efforts to preserve traditional culture. Despite its small size and geographic isolation, the country demonstrates resilience and innovation, striving to balance modernization with cultural preservation. Its vibrant traditions, friendly communities, and breathtaking landscapes make it a unique and admired Pacific nation.

Convert Comorian Franc to Other Currencies

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

FAQ on Comorian Franc (KMF) to Vanuatu Vatu (VUV) Conversion:

What is the Symbol of Comorian Franc and Vanuatu Vatu?

The symbol for Comorian Franc is 'CF', and for Vanuatu Vatus, it is 'VT'. These symbols are used to denote in everyday currency analysis.

How to convert Comorian Franc(s) to Vanuatu Vatu(es)?

To convert Comorian Franc(s) to Vanuatu Vatu(es), multiply the number of Comorian Francs by 3.5440068437087 because one Comorian Franc equals 3.5440068437087 Vanuatu Vatus.
Formula: Vanuatu Vatus = Comorian Francs × 3.5440068437087.
This is a standard rule used in conversions.

How to convert Vanuatu Vatu(es) to Comorian Franc(s) ?

To convert Vanuatu Vatu(es) to Comorian Franc(s), divide the number of Vanuatu Vatus by 3.5440068437087, since, 1 Comorian Franc contains exactly 3.5440068437087 Vanuatu Vatu(es).
Formula: Comorian Francs = Vanuatu Vatu(s) ÷ 3.5440068437087.
It’s a common calculation in conversions.

How many Comorian Franc(s) are these in an Vanuatu Vatu(es) ?

There are 0.2821664980064 Comorian Francs in one Vanuatu Vatu. This is derived by dividing 1 Vanuatu Vatu by 3.5440068437087, as 1 Comorian Franc equals 3.5440068437087 Vanuatu Vatu(s).
Formula: Comorian Franc = Vanuatu Vatus ÷ 3.5440068437087.
It’s a precise currency conversion method.

How many Vanuatu Vatu(es) are these in an Comorian Franc(s) ?

There are exactly 3.5440068437087 Vanuatu Vatus in one Comorian Franc. This is a fixed value used in the measurement system.
Formula: Vanuatu Vatu(s) = Comorian Francs × 3.5440068437087.
It's one of the most basic conversions.

How many Vanuatu Vatu in 10 Comorian Franc?

There are 35.440068437087 Vanuatu Vatus in 10 Comorian Francs. This is calculated by multiplying 10 by 3.5440068437087.
Formula: 10 Comorian Francs × 3.5440068437087 = 35.440068437087 Vanuatu Vatus.
This conversion is helpful for measurements.

How many Vanuatu Vatu(s) in 50 Comorian Franc?

There are 177.20034218544 Vanuatu Vatus in 50 Comorian Francs. One can calculate it by multiplying 50 by 3.5440068437087.
Formula: 50 Comorian Francs × 3.5440068437087 = 177.20034218544 Vanuatu Vatus.
This conversion is used in many applications.

How many Vanuatu Vatu(s) in 100 Comorian Franc?

There are 354.40068437087 Vanuatu Vatu(s) in 100 Comorian Francs. Multiply 100 by 3.5440068437087 to get the result.
Formula: 100 Comorian Francs × 3.5440068437087 = 354.40068437087 Vanuatu Vatu(s).
This is a basic currency conversion formula.