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Charted

Educational tools — not financial advice. These do math on numbers you read off your own chart. They are not trade signals, predictions, or recommendations to buy or sell anything. Trading involves risk of loss.

Risk/Reward & Position Size Calculator

Two of the most important numbers in trading have nothing to do with predicting price: how much you stand to make versus lose, and how big a position your risk budget allows. Enter the levels off your chart and your account math does the rest.

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Reward-to-risk ratio

3.00 : 1

Risking $5/share to make $15/share.

Risk budget
$100
Shares
20
Position size
$2,000
Potential reward
$300

Whole shares only (fractional shares may be available at some brokers). Excludes commissions, slippage, and taxes. Educational math, not a trade recommendation.

How it works

  • Reward-to-risk = distance from entry to target ÷ distance from entry to stop. A 3:1 means three units of potential reward for each unit of risk.
  • Risk budget = account size × risk %. Many risk managers keep this at 1–2% per trade.
  • Shares = risk budget ÷ per-share risk (entry-to-stop distance), rounded down to whole shares.
  • Position size = shares × entry price.

Educational, not financial advice. This is account arithmetic, not a recommendation to enter any trade or a prediction about any security. Trading involves risk of loss. See our full disclaimer.

Read the levels faster

Charted spots support, resistance, and patterns on a screenshot of your chart, so you can fill these fields in seconds.

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Need a target too? Try the measured-move calculator.