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Plan the numbers before the trade.

Free calculators for sizing risk, testing trade expectancy, understanding drawdown, checking margin and illustrating compound growth.

Use one currency and one price scale throughout each calculation.

Position size and risk

Set the most you are prepared to lose, then calculate a maximum size from the entry, protective stop and value of one point.

Risk amount ÷ (stop distance × point value)

Maximum position size

50
Risk amount
US$250.00
Stop distance
5 points
Planned risk after rounding
US$250.00

Size is rounded down to four decimal places so the planned risk is not exceeded. Round down further when your market only accepts whole contracts.

Risk and reward

Check whether the distance to a planned target compensates for the distance to the protective stop before an order is placed.

Reward distance ÷ risk distance

Reward-to-risk ratio

1 : 2
Risk distance
5 points
Reward distance
10 points
Theoretical break-even win rate
33.3%

The break-even rate excludes commissions, spread, slippage and partial exits.

Trade expectancy

Combine win rate with average winning and losing trades to estimate the theoretical value of one trade across a larger sample.

(Win rate × average win) − (loss rate × average loss)

Theoretical expectancy per trade

+0.35R
Profit factor
1.64
Break-even win rate
33.3%

A historical expectancy is not a forecast. Fees, slippage and changing market conditions can materially change the result.

Drawdown recovery

See why the percentage gain required to recover a loss grows faster than the drawdown itself.

Capital loss ÷ current balance

Gain required to recover

25.0%
Current drawdown
20.0%
Capital below peak
US$5,000.00

The calculation assumes no deposits, withdrawals, fees or additional losses during the recovery period.

Margin and leverage

Estimate how much account equity a leveraged position would reserve as initial margin before broker-specific adjustments.

Position value ÷ leverage

Estimated required margin

US$10,000.00
Account equity reserved
40.0%
Equity remaining after margin
US$15,000.00

Brokers can apply instrument-specific margin, concentration, overnight and volatility requirements. Confirm the live requirement before trading.

Compound growth illustration

Explore how an assumed annual rate and end-of-month contributions affect a balance when returns are compounded monthly.

This is a mathematical illustration, not a trading forecast.

Illustrated ending balance

US$67,932.91
Total contributed
US$40,000.00
Illustrated growth
US$27,932.91
Compounding periods
120 months

Real trading returns are uneven and can be negative. Taxes, fees, withdrawals and changing returns are not included.