Forward Rate Calculator
Calculate the forward exchange rate based on interest rate parity.
Variables
E.g. EUR rate in EUR/USD
E.g. USD rate in EUR/USD
Results
Understanding Forward Exchange Rates
What is a Forward Rate?
A forward exchange rate is the rate at which a commercial bank is willing to commit to exchange one currency for another at a specified future date. It is not a prediction of what the future spot rate will be. Instead, it is a mathematically derived price that prevents arbitrage (risk-free profits) between the interest rate markets and the currency markets.
How is it Calculated?
The forward rate is calculated using the concept of Interest Rate Parity. The formula takes the current spot rate and adjusts it based on the interest rate differential between the two currencies. Specifically: Forward Rate = Spot Rate × [1 + (Quote Currency Interest Rate × Days/360)] / [1 + (Base Currency Interest Rate × Days/360)].
Forward Premium vs. Forward Discount
If the forward rate is higher than the spot rate, the base currency is trading at a 'forward premium.' This happens when the quote currency has a higher interest rate than the base currency. Conversely, if the forward rate is lower than the spot rate, the base currency is at a 'forward discount,' which occurs when the base currency has a higher interest rate.
Frequently Asked Questions
Why do we use 360 days in the formula?
In international finance and money markets, the standard convention is to use a 360-day year (often called Actual/360) for interest rate calculations. Some currencies, like the British Pound (GBP), use a 365-day convention, but 360 is the most common standard for USD and EUR.
Can I use this for trading?
While retail traders don't typically trade forward contracts, understanding forward rates is crucial for understanding swap fees (rollover). When you hold a spot forex position overnight, you are essentially rolling the settlement date forward, and the interest rate differential calculated here dictates whether you pay or receive swap points.