USD – US Dollar
EUR – Euro
GBP – British Pound
JPY – Japanese Yen
CAD – Canadian Dollar
AUD – Australian Dollar
CHF – Swiss Franc
CNY – Chinese Yuan
INR – Indian Rupee
EUR – Euro
USD – US Dollar
GBP – British Pound
JPY – Japanese Yen
CAD – Canadian Dollar
AUD – Australian Dollar
CHF – Swiss Franc
CNY – Chinese Yuan
INR – Indian Rupee
1 USD = …EUR (Editable)
*Default rates are approximate estimates. Please update the Exchange Rate field for real-time precision.
Converted Amount
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Understanding Currency Exchange Rates
Calculating currency exchange rates is a fundamental skill for travelers, international investors, and businesses operating globally. An exchange rate defines the value of one currency in terms of another. For example, if the exchange rate between the US Dollar (USD) and the Euro (EUR) is 0.92, it means 1 USD is equal to 0.92 EUR.
How to Calculate Currency Conversions
The math behind currency conversion is straightforward multiplication. Once you know the exchange rate, the formula is:
Total Target Currency = Source Amount × Exchange Rate
For example, if you want to convert 500 British Pounds (GBP) to US Dollars (USD) and the rate is 1.25:
Amount: 500 GBP
Rate: 1.25 (1 GBP = 1.25 USD)
Calculation: 500 × 1.25 = 625 USD
Reading Cross Rates
In the Forex market, currencies are traded in pairs. The first currency listed is the Base Currency, and the second is the Quote Currency.
Direct Quote: The price of a foreign currency in domestic currency units.
Indirect Quote: The price of domestic currency in foreign currency units.
Using our tool, if you select USD as "From" and JPY as "To", USD is the base. If the rate is 150.00, it costs 150 Yen to buy 1 Dollar.
Factors Influencing Exchange Rates
Currency rates fluctuate constantly due to global economic factors:
Interest Rates: Higher interest rates in a country generally offer lenders a higher return relative to other countries, attracting foreign capital and causing the exchange rate to rise.
Inflation: A country with a consistently lower inflation rate exhibits a rising currency value, as its purchasing power increases relative to other currencies.
Political Stability: Investors prefer stable countries with strong economic performance. Turmoil can cause a loss of confidence and a drop in the currency's value.
Using the Calculator
This calculator allows you to perform conversions quickly. While it pre-populates with estimated market averages, exchange rates change every second. For the most accurate result, check the current spot rate from a financial news source or your bank and input it into the "Exchange Rate" field before calculating.
// Approximate base rates relative to USD (1 USD = X Currency)
// Used for demo purposes to pre-fill the rate field
var baseRates = {
"USD": 1.0,
"EUR": 0.92,
"GBP": 0.79,
"JPY": 151.50,
"CAD": 1.36,
"AUD": 1.52,
"CHF": 0.91,
"CNY": 7.23,
"INR": 83.40
};
// Symbols map
var currencySymbols = {
"USD": "$",
"EUR": "€",
"GBP": "£",
"JPY": "¥",
"CAD": "CA$",
"AUD": "A$",
"CHF": "Fr",
"CNY": "¥",
"INR": "₹"
};
function updateEstimatedRate() {
var from = document.getElementById("currencyFrom").value;
var to = document.getElementById("currencyTo").value;
var labelFrom = document.getElementById("labelFrom");
var labelTo = document.getElementById("labelTo");
var labelRate = document.getElementById("labelRate");
var rateInput = document.getElementById("exchangeRate");
// Update labels
labelFrom.innerText = from;
labelTo.innerText = to;
// Calculate cross rate
// Rate = (USD to Target) / (USD to Base)
var rate = 0;
if (baseRates[from] && baseRates[to]) {
rate = baseRates[to] / baseRates[from];
}
// Format rate to 4 decimal places for precision
var formattedRate = rate.toFixed(4);
// Update input and label
rateInput.value = formattedRate;
labelRate.innerText = formattedRate;
}
function calculateCurrency() {
var amountInput = document.getElementById("amount").value;
var rateInput = document.getElementById("exchangeRate").value;
var currencyTo = document.getElementById("currencyTo").value;
var currencyFrom = document.getElementById("currencyFrom").value;
var amount = parseFloat(amountInput);
var rate = parseFloat(rateInput);
if (isNaN(amount) || amount < 0) {
alert("Please enter a valid amount to convert.");
return;
}
if (isNaN(rate) || rate <= 0) {
alert("Please ensure the exchange rate is valid.");
return;
}
var convertedTotal = amount * rate;
// Formatting the output
// Standardize to 2 decimals usually, except for JPY which is usually 0 decimals
var decimals = 2;
if (currencyTo === "JPY") {
decimals = 0;
}
var symbol = currencySymbols[currencyTo] || "";
var formattedResult = symbol + " " + convertedTotal.toLocaleString(undefined, {
minimumFractionDigits: decimals,
maximumFractionDigits: decimals
});
var summaryText = amount.toLocaleString() + " " + currencyFrom + " at a rate of " + rate + " = " + formattedResult + " " + currencyTo;
var resultBox = document.getElementById("resultBox");
var resultAmount = document.getElementById("resultAmount");
var resultSummary = document.getElementById("resultSummary");
resultAmount.innerHTML = formattedResult;
resultSummary.innerHTML = summaryText;
resultBox.style.display = "block";
}
// Initialize logic on load
window.onload = function() {
updateEstimatedRate();
};