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ToolfulTrading / Free tool

Free lot-size calculator

Convert a defined risk into a position size before entering the market. No account or email required.

Position sizing

Risk-based lot calculator

Free

Use your account currency.

The percentage you are prepared to lose.

Distance from entry to invalidation.

Usually 10 for many USD-quoted FX pairs.

Suggested position size

0.40lots

Planned risk

100

Rounded risk

100

Approx. units

40,000

The result rounds down to two decimal places so the calculated size does not exceed the risk entered. Confirm contract and pip specifications with your broker before placing a trade.

Calculation done. Keep the reasoning too.

Toolful Traders can use their membership license to send the setup into the journal with entry, reason, target, and stop attached.

  • Keep risk and execution in the same record.
  • Review planned risk against actual outcome.
  • Build a repeatable decision history.
Become a Toolful Trader