Your rules start
with the math.

Lot size, profit & loss, and consistency score. Everything your strategy and your prop firm require — calculated before you trade.

Lot Size Calculator

Find the optimal lot size for your risk and account balance.

Account Balance ($)

Risk Percentage (%)

Asset Class

Symbol

Entry Price

Exit Price / Stop Loss

Recommended Position

Risk calculation result

Lot Size

Enter values and click Calculate

Total Cash Risk—

Asset ClassForex

Base CurrencyEUR

Disclaimer

The results from this calculator are for informational purposes only and may differ from actual outcomes due to market conditions. Please use caution and consider professional advice before making trading decisions.

The math is right.
Now make sure your execution is.

You know your lot size. You know your risk. You know your consistency score. The only thing left to break is your own rules. SessionLock makes sure you don’t.

Start Enforcing Your Rules

Your rules start with the math.

Lot Size Calculator

Disclaimer

The math is right. Now make sure your execution is.

Your rules start
with the math.

The math is right.
Now make sure your execution is.