Casino Bonus Calculator

How to read the calculation

The calculator separates the bonus amount, starting balance, required credited wagering and actual stakes. Starting balance is not withdrawable profit. Completing the arithmetic does not replace the other bonus or withdrawal conditions.

1. Enter the bonus and cap

A percentage bonus equals deposit × bonus percentage. An optional bonus cap limits that amount; leave the field blank to calculate without a cap. Choose a fixed bonus for a fixed award or free-spin winnings already credited. For a no-deposit bonus, enter a deposit of €0.

2. Select the wagering base

Check whether the multiplier applies to the bonus only or to bonus plus deposit. A €100 deposit with a 100 % bonus and 30× wagering requires €3,000 on the bonus alone, or €6,000 on bonus plus deposit. The same multiplier can mean different requirements.

3. Account for game contribution

Actual stakes equal required credited wagering divided by contribution as a decimal. A €3,000 requirement at 20 % contribution means €15,000 in stakes. At 0 %, a positive requirement cannot be completed with that game. Use the percentage in the offer terms; a game category does not establish its contribution.

Another worked example

A €200 deposit, 50 % bonus capped at €300, and 20× bonus-only wagering produces a €100 bonus, €300 starting balance and €2,000 required credited wagering. At 50 % contribution, actual stakes would be €4,000.

What the calculator cannot predict

Required stakes are neither your expected loss nor the starting capital you need. This calculation does not estimate winning chances or withdrawal time. Check maximum bet, expiry, excluded games, cashout cap and bonus cancellation rules separately. A low multiplier alone does not make an offer worthwhile.

Compare the calculation with an offer

Our casino comparison explains how to compare the bonus base, game contribution and deadlines, with links to individual reviews. Use the terms of your specific bonus stage in this calculator; a package headline is not automatically the bonus awarded on your first deposit.