Trailing drawdown calculator
Type your daily P&L and watch the max-loss line move — intraday, end-of-day or static, with 19 firm presets.
Open →Futures position size calculator
Contracts your stop allows, with MNQ, MES, MGC and the rest of the CME tick values built in — and a daily-loss check.
Open →Consistency rule calculator
See whether your best day is too big to get paid, and how much more profit it takes to clear the rule.
Open →Prop firm cost calculator
Evaluations, resets and monthly fees against the payouts you actually received — your real net.
Open →Calculators answer today. A journal answers every day.
A calculator tells you where you stand once, with the numbers you typed. The accounts that fail do so because nobody retyped them on the day it mattered. Propbook keeps the same maths running for every account you own, shows the room left at a glance, and pings you on Telegram before a limit is crossed.
Stop failing on rules you didn't track
Free, no card, no account limit — and you can try it without signing up.
Open Propbook →FAQ
Are these calculators really free?
Yes — no account, no card, no email. They run entirely in your browser and nothing you type is sent anywhere.
Do I need a Propbook account to use them?
No. They are standalone. Propbook itself is the version that remembers: it keeps the same numbers live for every account you trade, day after day, and warns you before a limit is crossed.
Can I use them for any prop firm?
Yes. 19 firms are preloaded as presets, and every field is editable, so any firm or custom account works.