Trading Calculators

Risk/reward, position size, stop loss, take profit, leverage, margin and loss recovery for traders.

Trading
Risk-Reward Ratio Calculator
Risk/reward ratio of a trade from entry, stop-loss and target, with the minimum win rate needed to break even.
R:R = |target − entry| ÷ |entry − stop|
Also called risk reward ratio · r:r calculator
Position Size Break-Even Win Rate Expected Value
Trading
Position Size Calculator
How many shares or units to buy so a stop-loss hit risks only a set percentage of your account.
Units = (account × risk %) ÷ |entry − sto…
Also called position sizing · risk per trade
Risk-Reward Ratio Stop-Loss Risk Percentage
Trading
Stock Profit Calculator
Profit or loss on a stock trade after commissions, with percentage return — works for any asset you buy and sell.
P/L = shares × (sell − buy) − fees
Also called stock gain calculator · profit loss calculator
Stock Return Capital Gains Tax Estimator Break-Even Price
Trading
Break-Even Price Calculator
Price an asset must reach to break even after buying, fees and any losses — for stocks, options and crypto.
Break-even = buy price + fees ÷ quantity
Also called break even stock price · breakeven price trading
Stock Average Loss Recovery Break-Even Price Calculator (Per Unit)
Trading
Stock Average Calculator
Average cost per share across multiple buys (averaging down or up), total shares and break-even price.
Average = Σ(shares × price) ÷ Σ shares
Also called average down calculator · average cost per share
Stock Profit DCA Calculator (Dollar-Cost Averaging)Break-Even Price
Trading
Percentage Gain Calculator
Percentage gain or loss between a buy and sell price, and the gain needed to recover a given drawdown.
% change = (sell − buy) ÷ buy × 100
Also called percent gain · percent loss calculator
Loss Recovery Percentage Change Stop-Loss
Trading
Loss Recovery Calculator
The percentage gain needed to recover from a loss — a 50% drop needs a 100% gain to break even.
Gain = 1 / (1 − loss) − 1
Also called drawdown recovery · gain needed to recover
Percentage Gain Stop-Loss Take-Profit
Trading
Stop-Loss Calculator
Stop-loss price for long or short trades from a percentage or amount, and the resulting loss if hit.
Long stop = entry × (1 − %)
Also called stop loss price · stop loss percentage
Take-Profit Position Size Risk-Reward Ratio
Trading
Take-Profit Calculator
Take-profit target price for a trade from your desired percentage gain or a risk multiple (R).
TP = entry ± R × |entry − stop|
Also called take profit price · profit target
Stop-Loss Risk-Reward Ratio Leverage
Trading
Leverage Calculator
Position size, margin required and effective leverage, with the price move that would wipe out your margin.
Position = margin × leverage
Also called leverage ratio · forex leverage
Trading Margin Position Size Risk-Reward Ratio
Trading
Trading Margin Calculator
Initial margin required to open a position from its size and margin requirement (or leverage).
Margin = position value × requirement
Also called margin required · initial margin
Leverage Position Size Risk-Reward Ratio

Key trading formulas

Risk-Reward Ratio	R:R = \|target − entry\| ÷ \|entry − stop\|
Position Size	Units = (account × risk %) ÷ \|entry − stop\|
Stock Profit	P/L = shares × (sell − buy) − fees
Break-Even Price	Break-even = buy price + fees ÷ quantity
Stock Average	Average = Σ(shares × price) ÷ Σ shares
Percentage Gain	% change = (sell − buy) ÷ buy × 100
Loss Recovery	Gain = 1 / (1 − loss) − 1
Stop-Loss	Long stop = entry × (1 − %) · Short stop = entry × (1 + %)
Take-Profit	TP = entry ± R × \|entry − stop\|
Leverage	Position = margin × leverage