SimpleToolbox
Trading Tools

Trading & Risk Calculators

Position sizing and risk management tools for day traders and prop firm participants.

What people are saying

"I run 3 prop firm challenges simultaneously. The breakeven calculator is the only one I've found that actually accounts for trailing drawdown — and my account sizes never get uploaded to some random server."

J

James R.

Funded Futures Trader

"Before every trade I check my position size and risk-reward ratio here. Two clicks, instant answer. No login, no subscription, and my risk parameters stay on my screen — not on some company's analytics dashboard."

D

Daniel W.

Forex Day Trader, 4 Years

"The micro futures sizer finally got the MES and MNQ tick values right. Every other calculator I tried was built for full-size contracts. And knowing it all runs in my browser means my account balance stays between me and my broker."

K

Kenji A.

Micro Futures Trader

Free trading calculators for position sizing, risk management, and profit targets. Works for stocks, futures, forex, and crypto. No login required.

Frequently Asked Questions

What trading calculators are available?

Position size calculator, risk/reward calculator, profit target calculator, prop firm calculator, and micro futures sizer.

Do these tools work for all asset classes?

Yes — the calculators are asset-agnostic. Enter your account size, risk percentage, and stop distance for any instrument.

What is a position size calculator?

A tool that tells you how many shares, contracts, or units to buy based on your account size and maximum acceptable loss per trade — a core risk management discipline.

Is my trading account data private?

Yes. All calculations run in your browser. Your account balance and position details are never transmitted anywhere.