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Risk & position sizing

Risk/Reward Calculator

Compare reward with risk, and read off the win rate that ratio needs to break even.

Inputs it asks for
Account balance currency
Risk per trade %
Entry price price
Stop loss price
Formula shown · assumptions disclosed

What it computes

Compare reward with risk, and read off the win rate that ratio needs to break even. The page states the equation, the units it expects and the rounding it applies, so the result can be reproduced by hand.

Where it sits in the chain

A calculator gives you a number. This one feeds the next: account to risk, risk to position size, position size to the trade, and the trade to expectancy, drawdown and risk of ruin.

See the performance tools →
Inputs
Result
Risk distance 0.00500
Reward distance 0.01000
Risk/reward 1 : 2.00
Break-even win rate 33.3%
Break-even win rate is the hit rate at which this ratio nets zero, before costs.
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Position Size Calculator

Turn an account balance, a risk percentage and a stop distance into a size in lots, shares or contracts.

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Risk Calculator

The maximum you should lose on one trade, before anything else about the trade is decided.

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Lot Size Calculator

Convert a position size into standard, mini and micro lots for your broker.

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Stop Loss Calculator

Work backwards from accepted risk and a fixed size to the stop distance that fits.

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Quantify the trade, then keep the record.