Bonus bet calculator
Size the lay for a bookmaker bonus paid on a win or a loss, with the bonus counted in.
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Free to use. It works in your browser, and nothing you type leaves it.
How it works
Some offers pay a bonus when your bet wins, others when it loses. Enter the bet, the maximum bonus and the share of it you expect to keep. The calculator sizes the lay and shows both outcomes with the bonus counted in.
Worked through
A £10 bet at 3.0, laid at 3.1 with 2% commission, on an offer worth up to £10 in bonus, kept at 80%. One column is an offer that pays when the bet loses, the other one that pays when it wins.
| It shows | Bonus if it loses | Bonus if it wins |
|---|---|---|
| Rating | 96.77% | 96.77% |
| Lay stake | £7.14 | £12.34 |
| Qualifying loss | £5.00 | £2.09 |
| Potential profit | £5.00 | £2.09 |
The bonus counts as £8.00, 80% of its maximum. The lay spreads that value so both outcomes finish level, which is why Qualifying loss and Potential profit show one figure, and why it is above zero here.
Both figures rest on the retention entered. The bonus is not cash until it has been used, and a lower retention lowers both.
Questions
What does 'bonus retention' mean?
The share of the bonus you expect to turn into cash after using it, as a percentage. The calculator counts the bonus as the maximum bonus multiplied by that share.
Which setting fits my offer?
Back Bet Loses is for an offer that pays a bonus when the bet loses, such as money back as a bonus. Back Bet Wins is for one that adds a bonus to a winning bet. The setting moves the bonus to that outcome and resizes the lay.
Does it work when the qualifying bet is a free bet?
Yes. Set Bet Type to Free Bet (SNR). The calculator then counts a losing back bet as costing nothing, since the stake was free.
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Related
For over-18s. If gambling is affecting you, free and confidential help is at GambleAware and the National Gambling Helpline on 0808 8020 133.
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