A funded challenge is not a normal trading account. A daily loss limit, a trailing drawdown or a consistency rule can end the account long before your balance runs out. These tools are built around those rules, so you can check where your limits sit before you place a trade, size positions to survive a losing streak, and judge whether a challenge price and profit split make sense.

All three are free, run in your browser and need no sign-up. When you are ready to pick a firm, use our rules database or side-by-side comparison.

Find the right challenge

Compare prices, rules, profit splits and payouts across top prop firms.

Compare prop firms

How to use these calculators in a challenge

Most failed challenges come down to position size and loss limits, not strategy. Use the calculators in this order before your first trade:

Work out your daily and overall loss floor with the drawdown calculator.
Decide your risk per trade, then convert it to lots or contracts with the position size calculator.
Check whether your win rate and reward-to-risk can reach the target with the risk/reward calculator and profit target calculator.
If your firm has a consistency rule, test your best day with the consistency calculator.
Estimate what you take home after the split with the profit calculator.

Calculator FAQ

Are the calculators free?

Yes. They run in your browser, need no sign-up and store nothing.

Do they work for futures and forex?

Yes. The position size calculator handles forex lots and futures contracts; the others work with any account in dollars.

Do the results match my firm's rules exactly?

They use the standard formulas. Firms differ on details such as balance vs equity and reset times, so check your firm's rules in our rules database and on its own site.