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Position Size Calculator

Work out lot size for forex or contract count for futures from your account balance, risk percent, and stop distance — free, no signup, and nothing leaves your browser.

Dollar risk
$100.00
Pip value used (per standard lot)
$10.00
Standard lots
0.50
Units
50,000
Mini lots
5.0
Micro lots
50

Prop-firm daily loss limit helper

Optional — if you trade a funded/prop account, see how many full-stop losses at your current risk-per-trade fit inside a daily loss limit or max drawdown before you'd breach it.

Full-stop losses before the limit
5

How to use this calculator

Pick Forex or Futures, then enter your account balance, the percent of that balance you're willing to risk on this one trade, and your stop distance. The calculator does the rest: it converts your risk percent into a dollar amount, then works out how large a position keeps that dollar amount as your maximum loss if the stop is hit.

For forex, position size comes out as lots (standard, mini, micro) and total units. For futures, it comes out as a whole number of contracts, rounded down, because you can't hold a fraction of a contract.

The formula, worked example

Forex — EUR/USD, $10,000 account, 1% risk, 20-pip stop

  1. Dollar risk = $10,000 × 1% = $100
  2. EUR/USD quotes in USD, so pip value per standard lot is a fixed $10
  3. Lots = $100 ÷ (20 pips × $10) = $100 ÷ $200 = 0.5 standard lots

Futures — ES, $10,000 account, 1% risk, 8-tick stop

  1. Dollar risk = $10,000 × 1% = $100
  2. ES tick value is $12.50, so risk per contract = 8 × $12.50 = $100
  3. Max contracts = floor($100 ÷ $100) = 1 contract, $100 total risk

Why risk per trade matters

More Than Money Academy teaches risking 1%-2% of your account per trade maximum, and never risking more than you can afford to lose. Sizing your position off a fixed risk percent — instead of a fixed lot or contract count — keeps every trade's worst case the same fraction of your account, whether your stop is tight or wide.

Want the full risk-management framework this calculator is built on, plus the trade setups that go with it? See the Forex Trading Course, Futures Trading Course, or Prop Firm Training.

FAQ

Want a system to trade this with, not just a calculator?

The Academy's curriculum covers position sizing as one piece of a full risk-management framework, alongside chart reading, trade setups, and trading psychology.

See plans

This calculator is for educational purposes and does not constitute financial advice. Trading involves risk of loss. See our risk disclosure.