Position size
Work out how many units to trade given account size, risk-per-trade and stop distance.
Trading calculators
Eight free trading calculators
Mobile-friendly, instant results, shareable via permalink. No sign-up required.
Numbers you can trust
Run the maths before you risk a penny — risk, sizing, drawdown and more.
Available trading calculators
Risk of ruin
Estimate the probability of catastrophic loss given win rate, R:R and risk-per-trade.
Pip value
Calculate the monetary value of one pip for any forex lot size.
Margin
See how much margin a leveraged position will lock up at a given leverage ratio.
Compound growth
Project the future value of an account growing at a steady rate, with optional contributions.
Drawdown recovery
How much gain — and how long — to recover from a given drawdown.
Sharpe ratio
Measure risk-adjusted return: (return − risk-free) ÷ standard deviation.
Break-even win rate
Minimum win rate required to break even given a fixed risk-reward ratio.