Position Size Calculator
Put in where you get in, where you are wrong and how much you will risk. Get the exact size, and see whether the trade is worth taking.
Reference rate:
Below entry for a long, above for a short.
The target is on the wrong side of your entry for a trade.
Position Size
Lots
Cash at risk
Reward : risk
Lots are rounded down to two decimals so you never risk more than you set. Spread and commission are not included.
How position sizing works
Position sizing turns a stop loss into a fixed cash risk. You decide the loss you can accept before you enter, then size the trade so that hitting the stop costs exactly that, however near or far the stop sits.
Formula
Lots = Risk amount / (Stop distance in pips × Pip value per lot)
Example: a $10,000 account risking 1% ($100), long EUR/USD with a 30 pip stop. A lot is worth $10 a pip, so 100 / (30 × 10) = 0.33 lots.
A wider stop gives a smaller position and a tighter stop gives a larger one. The cash at risk stays the same, which is the point.