How to use the rollover calculator
- Enter the deposit and bonusYour deposit and the bonus amount in naira.
- Set the requirementThe rollover multiple (for example 5x) and whether it applies to the bonus only or to bonus plus deposit.
- Describe your betsYour average stake and how many legs each bet has, if the terms require accas.
- Set the bookmaker edgeThe average margin per leg, 5% if you do not know it. The margin calculator helps you measure it.
The formula
Wagering needed = rollover × (bonus, or bonus plus deposit). Bets needed = wagering ÷ average stake. Expected cost = wagering × (1 minus (1 minus edge) to the power of legs). Value left = bonus minus expected cost.
Worked example
| Setting | Value |
|---|---|
| Deposit and bonus | ₦10,000 and ₦10,000 |
| Rollover | 5x on the bonus |
| Bets | ₦1,000 accas with 3 legs |
| Edge per leg | 5% |
| Wagering needed | ₦50,000 in 50 bets |
| Expected cost | ₦7,131 |
| Value left | about ₦2,869 |
The same offer at 5x on bonus plus deposit needs ₦100,000 of wagering and costs about ₦14,263 on average: more than the bonus itself.
The expected cost is an average. A losing run can wipe the bonus out long before you reach the target. Never deposit more to chase a rollover.
Rollover calculator FAQ
Why do accas cost more to roll over?
The margin compounds on each leg. Three legs at 5% each keep only about 85.7% of the stake on average, against 95% for a single.
Do all bets count towards rollover?
Usually only bets at or above the minimum odds, and often only settled bets. Cashed-out bets may not count. Check the terms.
Is a bigger bonus always better?
No. A big bonus with a high rollover on bonus plus deposit can be worth less than a small bonus with light terms. Compare the value left, not the headline.
What is a fair rollover?
There is no standard. Use the calculator: if the value left is close to zero or negative, the bonus mainly ties up your deposit. See our free bets and rollover guide.