Forex Trading Calculators

A forex trade calculator answers one narrow question before or after a trade: how many lots to open, what a pip is worth, how much margin is locked up, or what a losing streak does to the account. Start with the question you need answered.

Sizing a trade before entry

Position size is the first calculation for most planned trades. It turns account size, risk per trade and stop-loss distance into a lot size. The position size calculator covers this in more detail.

Pip value feeds that calculation. It depends on pip size, contract size and lots, and pairs quoted to two decimals and metals use different pip sizes. The pip calculator handles those cases, including XAUUSD.

Margin shows how much of your balance the broker holds while the position is open, based on position size, price and leverage. See the margin calculator for account-currency conversion.

Leverage works in the other direction. It divides position value by account equity. Use equity, not balance, because open losses reduce equity. A 100,000 position on 10,000 of equity is 10:1 effective leverage, whatever maximum the broker allows.

Costs and results of a trade

Profit works out the result of a long or short position in the quote currency. The profit calculator converts it to your account currency.

Swap / rollover estimates the overnight financing on a position held past the trading day. A negative rate is a charge and a positive rate is a credit. Brokers set their own swap rates for long and short sides, so take the rate from your platform’s contract specifications.

Rebate multiplies monthly lots by the rebate per lot. Confirm whether your program counts a lot per side or per round trip, because that halves or doubles the figure.

Currency converter multiplies an amount by a rate. Check the direction: converting from the quote currency back to the base currency means dividing by the rate, not multiplying.

Chart levels

Fibonacci takes a swing high and swing low and places retracement levels at the standard ratios (23.6%, 38.2%, 50%, 61.8% and 78.6% of the range).

Pivot points use the prior period’s high, low and close to set a pivot with support and resistance levels around it. These levels are reference points for planning entries and stops. They do not predict where price will turn.

Account risk and growth

Drawdown shows what a losing streak does to a balance. If you risk a fixed percentage of the current balance, losses compound downward rather than adding up.

Risk of ruin combines win rate, reward-to-risk ratio and risk per trade into a probability of losing a set share of capital. Small increases in risk per trade change the result sharply.

Compounding projects an initial amount, an annual rate and monthly contributions over a number of years. Treat the rate as an assumption you choose. It is not an expected trading return.

Consistency is built for prop firm evaluations. It divides your best day’s profit by total profit and compares the result with the firm’s limit. Each firm defines the rule, and whether hitting the limit exactly passes, in its own terms.

Choosing where to start

Start with position size if you are planning a trade, pip value if you are checking one, and drawdown or risk of ruin if you are reviewing a strategy. To test whether a strategy’s win rate and reward-to-risk hold up on past data, use the backtesting and market replay tool. The wider set of utilities is listed under forex trading tools.