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Free bonus bet calculator
Back the bonus bet at one bookmaker and cover the other outcome elsewhere, sizing the cover so both results are equal. For a stake-not-returned bonus the cash you keep is the bonus times (price - 1), minus the cover stake. Enter the bonus, its price and the cover price below.
Bonus bet converter
Bonus type
Cover the other side by
At a different bookmaker
Back the other side at 1.30
$115.38
You keep
$34.62
Conversion rate
69.2%
If the bonus wins
$34.62
If the other side wins
$34.62
If both bets stand at these prices, the $50.00 bonus becomes $34.62 in cash whichever side wins.
18+. Arithmetic on the prices you enter, not a tip or a prediction. Prices can move, and bets can be limited or voided, before both are placed. Gambling Help Online: 1800 858 858.
The live version
The live converter finds the prices for you: it pairs your bonus bookmaker with the best cover across the bookmakers and Betfair, with the conversion rate on every row.
Worked example. A $50 stake-not-returned bonus at 4.00, covered at 1.30: the bonus pays $150.00 if it wins, so the cover stake is $115.38 and the result is $34.62 either way, a 69.2% conversion rate, at those prices.
What it assumes. That both bets are placed at the prices you enter and both stand. It cannot see price moves, stake limits or a bookmaker voiding one side, and it does not check the bonus terms (minimum price, expiry, which markets count).
18+. These calculators do arithmetic on the numbers you enter; they are not tips or predictions. Gambling can be harmful. For free, confidential help call Gambling Help Online on 1800 858 858 or visit our responsible gambling page.
It depends on the two prices, so enter yours. The calculator shows the cash you keep and the share of the bonus that is, which is the number to compare between bookmakers and between cover options.
A stake-not-returned bonus pays only the winnings if it wins; the bonus stake itself is not paid back. A stake-returned bonus pays the stake back as well, so it converts for more cash.
Either works. Backing at another bookmaker has no commission. Laying on an exchange can give a better price, and the calculator deducts the commission you enter. Compare both with your actual prices.
A refund-as-bonus after a loss is a bonus bet, so yes. For a plain price boost, use the hedge or back and lay calculator instead.
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