Position Size Calculator

Size your trade from account balance, risk percentage, entry, and stop-loss — for long or short positions.

Trade setup

Live
USD
%

Percent of your account you are willing to lose if stop-loss is hit.

USD
USD

Long: stop-loss must be below the entry price.

Results

Updates instantly as you type.

Risk amount
Risk per unit
Recommended position size
Position value
Position size % of account

How it works

  • Risk amount = account balance × risk %
  • Risk per unit = |entry − stop-loss|
  • Position size (units) = risk amount ÷ risk per unit
  • Position value = position size × entry price
  • Position % of account = position value ÷ account balance × 100