Free tool
Position size calculator
Enter the prices from your chart or signal. The calculator measures the stop for you and sizes the trade.
Rounded down to the nearest 0.01 lot so you never risk more than planned.
Conversions use reference rates from 6 October 2026. Your broker’s live prices will differ slightly.
Straight from the chart or signal
Signals and chart setups give you prices, not pip counts. Type the entry and stop loss exactly as written and the calculator measures the distance, so there is no mental arithmetic and no JPY-pair slips. Choose Risk amount if you think in cash ("I'll risk $40 on this") rather than percentages.
Prefer pips? Use the lot size calculator. Trading gold? Use the XAU/USD lot size calculator. Background reading: lot sizes explained.
FAQ
What is position sizing in forex?
Position sizing means choosing how many units or lots to trade so that, if your stop loss is hit, you lose a set amount. It is the main tool for controlling risk.
How is position size calculated?
Position size in lots = amount at risk ÷ (stop distance in pips × pip value per standard lot). Stop distance = |entry − stop| ÷ pip size.
Is a position size calculator the same as a lot size calculator?
They do the same job. This one takes entry and stop prices and lets you risk a fixed cash amount. The lot size calculator takes the stop in pips and a percentage.
Official Telegram channel
Trade ideas, with the reasoning attached.
Our signals go out on Telegram first: entry, stop loss, take profit and the context behind each one. Free to join, leave any time.