Forex Position Size Calculator (CAD accounts)

Why position sizing matters more than entries

Professional traders obsess over one number before every trade: how much will I lose if I'm wrong? Position sizing turns that number into an order size. Risk a fixed small percentage of your account per trade (1% is a common ceiling) and a losing streak becomes survivable; size by gut feel and one bad week can end your trading.

How the calculation works

1. Risk amount = account balance × risk %. With $5,000 CAD and 1% risk, that's $50.
2. Pip value per unit in your account currency. For USD/CAD the quote currency is CAD, so one pip (0.0001) on one unit is worth $0.0001 CAD.
3. Position size = risk amount ÷ (stop-loss in pips × pip value per unit).

With a 30-pip stop on USD/CAD: $50 ÷ (30 × 0.0001) = 16,667 units, or about 0.17 standard lots.

For pairs where the quote currency isn't your account currency — EUR/USD in a CAD account, for example — the pip value has to be converted from USD to CAD. The calculator does this using Bank of Canada reference rates.

Canadian leverage limits and position size

At a CIRO-registered dealer, the margin you need for a position is set by CIRO's margin rates, so your maximum position is capped by your balance. That cap is usually far above what sensible risk management allows. If the calculator tells you a trade needs more margin than you have, your stop is probably too tight or your risk too high.