Trading calculators
Work out position sizes, exits and costs before you place a trade. Free to use without an account; brokerage and currency conversion are included in every result.
Position size calculator
How many shares to trade so that being stopped out loses only the amount you chose, with fees and currency conversion included.
Take-profit planner
Plan partial exits at up to four targets: what each exit locks in, the average exit price, and the result if the stop is hit along the way.
Risk/reward and break-even calculator
Reward-to-risk before and after fees, the exit price that breaks even, and the win rate a trade like this needs.
Bond price, yield and duration calculator
Price a bond from its yield or find the yield from its price, with duration, convexity and how much the price moves when yields change.
Currency conversion calculator
Convert at the daily reference rate and see what a broker’s conversion fee or spread costs you.
Market hours
Which exchanges are open now, in your own time zone, with holidays, early closes and daylight-saving changes.
Learn
The ideas behind the calculators, with worked examples: position sizing, reward-to-risk and break-even.