Free Forex Calculators

Forex trading involves a lot of moving numbers — pip values that change with every currency pair, lot sizes that depend on your exact account balance and risk tolerance, margin requirements that shift with leverage, and overnight swap costs that quietly eat into positions held for days. Getting any of these wrong costs real money. These calculators handle the arithmetic so you don't have to.

The most important forex calculator for new traders is the Lot Size Calculator. Most beginner mistakes come from position sizing — either trading too large relative to a stop loss, or not knowing how to convert a pip-based stop into a dollar risk. Enter your account size, risk percentage, and stop in pips, and you get the exact lot size to trade.

Once you have sizing right, pip value matters. Pip value is not constant — it changes depending on the currency pair and the current exchange rate. For pairs quoted against USD like EUR/USD or GBP/USD, a standard lot is worth $10 per pip. For cross pairs like EUR/GBP, pip value in USD changes with the exchange rate. The Pip Value Calculator handles this for 15+ major pairs.

Traders who hold positions overnight also need to account for swap. Rollover charges accumulate fast on leveraged positions, especially in a high-rate environment. The Swap Calculator shows your daily cost so you can decide whether a multi-day trade is worth the carry.