TRADING TOOLS / RISK CONTROL

Risk / reward calculator.

Is the potential profit worth the planned loss? Compare your net reward and risk after estimated costs, before opening a position.

Long / ShortNet R multipleBreak-even win rateCosts & slippageRuns locally

Need to calculate how many units to trade? Open Position Size → Already know your exit price? Calculate Trading P&L → For inverse COIN-M contracts, use the separate inverse model →

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For a persistent shortcut, install from markethistorylab.com rather than a temporary review link. Internet access is required to load the calculator; the site does not provide live price feeds.

Set your trade

All prices must be quoted in the same currency. The first calculation needs only entry, stop and target.

Trade direction

Entry price

Stop-loss price

Take-profit target

Position & trading costsOptional

Leave quantity blank to calculate per-unit risk/reward. Fees and slippage default to zero; model realistic costs to compare net outcomes.

Position quantity (optional)

Entry fee (%)

Stop exit fee (%)

Target exit fee (%)

Stop slippage (%)

Target slippage (%)

Stop and target are alternative outcomes. Only the fee for the applicable exit is included. Funding and liquidation are excluded.

This is a linear single-entry, single-exit model. No guaranteed fills, funding, dynamic scaling, spread, tax or derivatives liquidation. The theoretical break-even win rate assumes repeatable win/loss sizes and no other outcomes.

NET SCENARIO READY FOR INPUT

Net reward / risk (R)—Potential net gain divided by potential net loss at the stop. Includes modeled costs.

Net risk per unit—Loss if stopped, including both relevant fees.

Net reward per unit—Profit at target, after costs. Can be negative.

Break-even win rate—Minimum theoretical winning frequency to offset modeled losses.

Gross R (before costs)—

IF YOU ENTER QUANTITY

Full-position net loss—

Full-position net gain—

Entry notional—

EXECUTION & COST ASSUMPTIONS

Modeled stop fill—

Modeled target fill—

Fees per unit if stopped—

Fees per unit if target hits—

Actual fills, volatility and transaction costs can alter results.

Enter entry, stop and take-profit target. No position quantity is required.

Includes values you entered. Prepared on your device; nothing is uploaded to us.

Risk/reward model v1 · Linear spot or quote-margined price behavior only. All amounts are in your quote currency. Stops and targets are not guaranteed fills. Educational tool, not investment advice.

HOW TO READ THE RESULT

A 2R reward is not a prediction.

Suppose your entry is $100, your stop $95, and your target $110. Before fees, you risk $5 to potentially gain $10 per unit. That is a 2:1 reward-to-risk ratio or 2R. In an ideal series of identical trades, you would need to win more than one in three to come out ahead before trading costs.

Net R = (gross target profit − entry fee − target exit fee) ÷ (gross stop loss + entry fee + stop exit fee)

The break-even win rate is loss ÷ (gain + loss) if the net gain is positive. Once you include fees and slippage, that threshold may rise. A favorable ratio alone says nothing about the probability of reaching a target.

Full calculation methodology ↗