Free trading calculators
A set of free, instant trading calculators — no account, no sign-up. They run entirely in your
browser and are embeddable on your own site. Pick one below.
Position Size Calculator→
Turn a fixed-risk plan into a share count.
R-Multiple Calculator→
Express any trade as a multiple of risk.
Risk of Ruin Calculator→
Estimate the odds of blowing up.
Break-Even Win Rate Calculator→
The win rate a payoff ratio requires.
Average Down Calculator→
Blend two buys into one cost basis.
Profit Target Calculator→
Set targets in multiples of risk.