Prop Firm Guardian — Risk & Lot Size Calculator

Inputs

Instrument

Account balance

€ / $

Currency doesn't matter as long as your values match.

Prop rules

Daily loss %

Max loss %

Risk per trade

Risk %

OR Risk $

If you fill both, Risk $ wins.

Stop loss distance

Points

Value/point @ 1.00 lot

For many brokers: XAUUSD 1.00 lot ≈ $1 per 0.01 (so value/point = 1 if your “point” means 0.01). If unsure, check MT5: Symbol → Specification → Tick value / Tick size.

Lot step (broker)

Min lot

Step

Results

Risk amount

—

Loss @ 1.00 lot

—

Max lot (rounded down)

—

Prop-firm guardrails

Daily loss ($)

—

Max loss ($)

—

Suggested risk/trade ($)

—

How the calculator works

Risk amount = Risk $ (if provided) else Balance × Risk%.
Loss per 1.00 lot = SL points × value/point.
Max lot = Risk amount ÷ Loss per 1.00 lot (rounded down to your lot step).

This is an educational tool. You are responsible for your trading decisions.