Key facts
- Every calculator runs in your browser and shows the formula behind the result.
- The no deposit bonus calculator turns wagering, game contribution, RTP and max cashout into an expected dollar value.
- Results are long-run averages, not predictions: real sessions swing above and below them.
Why we built these calculators
A bonus headline tells you the amount. The terms decide what it is worth. These calculators apply the same math we use in every review, so you can check any offer yourself, including ones we have not reviewed.
Available now
- No deposit bonus calculator: the expected dollar value of a bonus after wagering, game contribution, RTP and max cashout.
Odds, parlay and vig calculators for sports betting are on the way.
All gambling calculators
Frequently asked questions
Are these calculators free?
Yes. They run in your browser, need no account and store nothing.
Can a calculator tell me if I will win?
No. It shows the average outcome over many plays. Any single session can end well above or below it.
Which calculator should I use for a no deposit bonus?
Use the no deposit bonus calculator. Enter the bonus amount, the wagering multiplier, the game's RTP and contribution, and any max cashout.