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Free trading calculators

Quick, no-signup calculators for the numbers you should check before and after every trade. Once you have taken the trade, log it in the free TradeStack journal so the real numbers replace the estimates.

  • Options profit calculator
    Work out the profit, loss and break-even of a single-leg call or put before you place it. Everything runs in your browser, nothing is stored.
  • Position size calculator
    Size every trade off your stop, not your gut. Enter your account, the percent you are willing to risk, your entry and your stop.
  • Risk reward calculator
    Every risk-reward ratio implies a minimum win rate. Enter your entry, stop and target to see both.
  • Expectancy calculator
    Expectancy is the honest answer to whether a strategy makes money. Enter your win rate, average win and average loss.
  • Prop firm drawdown simulator
    Enter your evaluation rules and risk per trade to see how many consecutive losses the account survives in a day and in total, plus your remaining buffer.
  • Futures tick value calculator
    Turn a stop measured in ticks or points into real dollars for the major futures contracts, then get the contract count that fits your risk budget.
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