calculator
Unit Size Calculator
Find your 1-unit value based on bankroll and a unit percentage so your sizing stays consistent.
Unit sizing
Example: $2,000 bankroll at 1% unit = $20 per unit.
1 Unit: —
Why unit sizing protects you
Most bettors blow up because bet sizes drift with emotion.
Units keep your sizing consistent across cold streaks and heaters. If you don’t use units, you end up “feeling” your bet sizes — and that’s how bankrolls die.
- 1% is a common default for most bettors
- 2% can be aggressive depending on volatility
- Parlays should usually be smaller than straight bets
Mini FAQ
Should unit % change? Only when bankroll changes meaningfully — not daily.
Can I use different units for parlays? Yes — many bettors do (ex: 0.25u parlays).