Position sizing

Define your risk. See your trade before you enter.

RISK / REWARD CALCULATOR

Trade inputs

Trade direction

Account denomination

Stock price denomination

Total account value

Planned price per share

Equity you plan to risk

Distance from entry price

Risk : Reward1 : 3

Enter 3 to target a reward of 3 times your risk.

Exchange rate

1 USD = 1 USD

Same currency · no conversion needed

Live quotes come from Yahoo Finance. When Yahoo is unavailable, the dated European Central Bank reference rate is shown and labelled. Manual mode also works offline.

Updates as you edit

Tab between fields · ↑ / ↓ to adjust · Enter values directly.

Trade plan

LONG
Live calculation
Shares to buy
—
Whole shares · rounded down
Stop-loss price
—
—
Target price
—
—
Planned loss at stop
—
—
Potential profit at target
—
—
Risk : Reward
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—
Position exposure —Risk budget —

Output currency: USD. Equity and risk budget stay in the base currency.

Price & payoff map

Entry —
Risk · 1R—
Reward · 3R—
Enter valid inputs to see the trade map.

Vertical distance is to price scale, not time. Labels are spaced for readability; arrows end before the price lines. Tiny intervals omit the arrow.

Calculation details & assumptions
Budget ÷ risk per share—
Target movement—
Position notional—
Unused risk budget after rounding—
Funding / margin—

Shares = floor(base equity × account risk % ÷ (trade entry × stop distance % × FX)). FX is base units per 1 trade unit. Target = trade entry ± (trade entry × stop distance % × reward multiple). The share count is risk-based, not capped to cash. FX is held constant for this scenario; future FX movements, conversion spreads, fees, slippage, taxes, margin rules and borrow costs are excluded. Base-currency prices are converted equivalents, not broker order prices. Whole shares are used; exchange board lots are not enforced. Displayed prices are theoretical and rounded, not tick-size-validated orders.

Scenario estimates, not guaranteed maximum loss or gain.