Calculate bet rollover from your inputs, with a result breakdown and worked steps.
Bet Rollover Formula and Method
Required credited wagering = selected base × multiplier
Read the offer’s requirement base and multiplier, then enter the amount of wagering already credited toward that requirement. A base of deposit plus bonus differs from bonus alone. Credit is the amount counted by the provider after its contribution rules, not necessarily the raw amount previously staked.
How to Use This Calculator
Select the result and any applicable method before entering the visible values. Check the selected record, unit and scoring conventions before calculating. Review the primary result and its breakdown, then open the calculation steps to see how the inputs were used.
Worked Example
With the example inputs in the table, the result is 1,200 USD. Credited wagering means the amount already counted toward the requirement.
Remaining eligible turnover = max(0, required − credited) / contribution fraction
Input and Example Guide
| Input or category | Example or weight | Entry guidance |
|---|---|---|
| Money unit | U.S. dollars (USD) | Choose the convention that applies to your record. |
| Eligible deposit (selected currency) | 100 | Use the stated unit; retain available precision. |
| Eligible bonus (selected currency) | 50 | Use the stated unit; retain available precision. |
| Requirement base | Deposit plus bonus | Choose the convention that applies to your record. |
| Wagering multiplier (times the base) | 10 | Use the stated unit; retain available precision. |
| Wagering already credited (selected currency) | 300 | Use the stated unit; retain available precision. |
| Eligible stake contribution (%) | 100 | Use the stated unit; retain available precision. |
Interpreting the Result
The remaining credited amount is divided by the eligible contribution fraction to find remaining eligible turnover. For example, a fifty-percent contribution requires twice the raw stake amount for each unit of credit. This does not estimate expected losses, remaining time, eligible games or withdrawal entitlement.
This translates stated offer terms; it does not estimate cost or profit. Game eligibility, excluded stakes, maximum bets, deadlines, netting and withdrawal rules are separate conditions.
Assumptions and Common Input Errors
Credited wagering means the amount already counted toward the requirement. Keep the same currency and settlement conditions throughout a scenario. Displayed currency amounts are rounded to two decimals; calculations retain precision unless cent allocation is explicitly described.
Saving and Revising a Scenario
A successful calculation is saved in this browser and can be restored on the next visit. Editing an input clears the old result so it is not mistaken for an updated calculation. Reset returns the example inputs and clears the saved result.
Sources
Betfair Help, Decimal Odds and Stake-Inclusive Returns, reviewed 2026. Arithmetic and scenario assumptions are specified above.