Free Profit Calculator for UK Traders

Every trade you take should have a clear profit target before you click the button. The profit calculator lets you model different scenarios: What if EUR/USD moves 50 pips in my favour? What if I trade 0.5 lots instead of 1? What is my loss if price hits my stop loss? By answering these questions before entering the trade, you eliminate emotional decision-making during live market conditions.

The most successful traders operate with a minimum reward-to-risk ratio of 2:1. This means if you are risking 30 pips on a stop loss, your take profit should be at least 60 pips away. At a 2:1 ratio, you only need to win 34% of your trades to break even. At 3:1, that number drops to just 25%. Our calculator helps you visualise these numbers so you can evaluate whether a trade setup offers sufficient reward before committing capital.

Pre-trade planning also helps you avoid the common trap of moving your take profit target once a trade is in profit. Many traders see unrealised gains and become greedy, extending their target only to watch price reverse and turn a winner into a loser. Having a calculated profit target keeps you disciplined.

For a long (buy) trade, your profit equals (Exit Price minus Entry Price) multiplied by your lot size and the pip value. For a short (sell) trade, the formula reverses: (Entry Price minus Exit Price) multiplied by lot size and pip value. This distinction matters because it determines whether a price increase or decrease benefits your position.

Spread costs should be factored into every profit calculation. If your broker charges a 1.5-pip spread on EUR/USD, your long trade effectively starts 1.5 pips in the red. On a 30-pip target, that spread represents 5% of your potential profit. On a 10-pip scalping target, it represents 15%. This is why scalpers and short-term traders obsess over finding brokers with the tightest possible spreads.

Swap fees (overnight financing charges) also affect profitability for trades held beyond the daily rollover time. A position held for five days accumulates five days of swap charges, which can be positive or negative depending on the interest rate differential between the two currencies. For swing traders and position traders, swap costs can meaningfully impact net profitability.

Beyond individual trade planning, the profit calculator is a powerful tool for backtesting strategy performance. Take your last 20 trade setups from your trading journal, enter the entry prices, exit prices, and lot sizes, and calculate the total profit or loss. This gives you a clear picture of your strategy's expectancy: the average amount you earn or lose per trade.

A positive expectancy means your strategy is profitable over time. A negative expectancy means it is losing money and needs to be revised. The formula for expectancy is: (Win Rate × Average Win) minus (Loss Rate × Average Loss). Even a strategy that wins only 40% of the time can be highly profitable if the average win is three times the average loss.

Regularly reviewing your actual profit calculations against your planned targets also reveals execution quality issues. If your planned targets are 60 pips but your average actual exit is only 45 pips, you may be closing trades early due to fear. If your planned stop is 30 pips but your average loss is 50 pips, you may be moving your stop loss or not using one at all. The numbers do not lie.