Free trading tools. No signup required.
Two calculators that force you to do the math most traders skip. Bookmark them — you'll come back before every trade.
Position Sizing Calculator
The single biggest reason new traders blow up isn't bad entries — it's position sizes that are far too large. Risk a fixed small percentage of your account on every trade and one bad loss can't end you. Enter your numbers and the calculator tells you exactly how many shares to buy.
Dollar risk
$100.00
The most you lose if your stop is hit.
Position size
50 shares
Position value: $2,500.00
Want multi-asset support (forex lots, crypto), a Kelly Criterion sizer, and risk-of-ruin tables? The advanced version is in the Toolkit →
Win Rate / Expectancy Calculator
A high win rate means nothing if your losers are bigger than your winners. Expectancy is the only number that tells you whether a system makes money over time. Most traders have never calculated theirs — and the answer is often a wake-up call.
Expectancy per trade
$25.00
Over 100 trades
$2,500.00
Most traders have never run this math — and the result often shocks them. The Journal in the Toolkit calculates your real expectancy automatically as you log trades. See the Toolkit →
Level up
These are the free versions.
The Trader's Toolkit includes advanced calculators (multi-asset, Kelly Criterion, risk-of-ruin) plus the Mechanical Trading Journal that tracks your real expectancy automatically as you trade.
See the Toolkit