Free betting calculator
Bankroll calculator
Set a unit size from your betting bankroll and how much risk you want to take, and see what a run of losses would leave.
Your bankroll
| Losing run at one unit | Bankroll left |
|---|---|
| 5 losses in a row | $450.00 |
| 10 losses in a row | $400.00 |
| 20 losses in a row | $300.00 |
A bankroll is money you can afford to lose entirely, kept apart from rent, bills and savings. Losing runs of 10 or more happen even to careful bettors, which is why units are usually small. Never raise stakes to win back losses. If betting stops being fun, call 1-800-GAMBLER.
Calculations show hypothetical outcomes from the prices you enter. They do not predict results, and betting always involves risk.
Why units matter
Flat, small stakes keep one bad night from ending your bankroll. At 2% units, a $500 bankroll gives 50 units of $10.00; ten losses in a row would leave $400.00.
Ground rules
- Your bankroll is money you can afford to lose entirely, kept apart from bills and savings.
- Decide the unit before you bet, not after a win or loss.
- Set a time and money limit for each session. More help: playing responsibly.
Related guides
Common questions
What is a betting unit?
A standard stake, set as a share of your bankroll, so bet sizes stay consistent. With a $500 bankroll and 2% units, one unit is $10.00.
What unit size should I use?
Smaller units survive losing runs better. Many people use 1% to 3% of the bankroll; larger units mean bigger swings.
Should my unit change as my bankroll changes?
Recalculating from the current bankroll keeps the same risk level: units shrink after losses and grow after wins.
What if I keep losing?
Stop, and never raise stakes to win money back. If betting stops being fun or feels hard to control, free and confidential help is available at 1-800-GAMBLER.
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