Free calculators
Results are estimates based on the numbers you enter. Verify with your broker before relying on them.
Option Breakeven Calculator
See the breakeven, maximum profit and maximum loss at expiry.
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Option Payoff Chart
See the expiry payoff and breakevens for strategies of up to four legs.
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Position Size Calculator
Work out how many units to trade from your capital and risk per trade.
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Risk-Reward Calculator
Find the reward-to-risk ratio and the win rate you need to break even.
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Options Trading Charges Calculator
See net P&L after STT, exchange charges, GST and stamp duty.
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