ForexFin

Free forex calculators. No signup. Bookmark and go.

Position sizing, pip value, margin, swap cost, risk:reward, and Kelly fraction — six tools for retail traders who care about getting the math right before clicking buy.

Calculators
Position Size

How many lots to trade so a stop-out costs only your planned risk.

Pip Value

What one pip is worth in your account currency, for any pair and lot size.

Margin

Capital required to open a position at a given leverage.

Swap / Rollover

Estimated overnight financing cost from interest-rate differential.

Risk : Reward

R-multiple, pips at risk, pips at reward — from entry, stop, and target.

Kelly Fraction

Mathematically optimal bet size from win rate and average win/loss.

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