Free trading calculators
Plan a trade properly before you place it: how much to buy, where to get out, and whether it's worth taking. Free, no sign-up.
Position size calculator
How many shares to buy for the risk you pick.
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Risk/reward calculator
Your reward-to-risk ratio and the win rate you need to break even.
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Stop loss calculator
Where to put your stop: by percent, dollars or ATR.
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Let Boo plan the trade for you
Upload a screenshot of any chart or type a ticker. Boo reads it and hands you the entry, stop loss, target and position size in seconds. Your first full plan is free.