Free tools
Risk math, done before the trade
Free, no signup, no tracking of what you type — these run entirely in your browser. They calculate the numbers; enforcing them when it counts is the harder part.
Position Size Calculator
Work out the correct lot size from your account size, risk percentage, and stop distance — before the trade, not after.
Daily Loss Limit Calculator
Size a daily loss limit that bounds a bad day without ending your account — including a personal limit that sits inside your prop firm's.
Knowing the right number is the easy half. If you want those limits enforced automatically on your MT5 account, that's what Risk Marshal does.