Bonus bagging calculator – does the maths add up?
A bonus bagging calculator estimates the real value of a welcome offer after wagering. It subtracts the expected loss from the bonus amount to show potential profit or cost.
Players use the tool to compare two offers side by side before depositing.
Inputs the calculator needs
Enter the bonus amount, wagering multiplier, average slot RTP, and stake size. The sheet then multiplies bonus by wagering to reach total turnover required.
Next it multiplies turnover by the house edge to estimate how much you are likely to lose during play-through.
Reading the output
A positive figure means the bonus outweighs expected loss. A negative result signals that wagering may cost more than the bonus is worth.
Always adjust the RTP field to match the slots you plan to use.
Limitations to keep in mind
The calculator assumes average results. Variance can swing actual outcomes, and live tables usually contribute less, lengthening the grind.
When to run the numbers again
Recalculate whenever a new promotion appears or when you switch to a different game mix. Small changes in RTP or stake produce different break-even points.
Verdict
The tool offers a quick reality check rather than a guarantee. Use it to shortlist offers, then read each site’s full terms before you deposit.
Play responsibly. Gambling can be addictive. Set a limit and stop if it stops being entertainment. 18+.