A Moneybren tool
EV CALCULATOR
For multi-game "same game multi" style promos: work out the expected value of a bonus-back bet across several legs.
For Australian matched bettors · 18+
$
$
%
The legs
Lay odds auto-fill at 1.1× the back odds — overwrite them if you have the real exchange price.
Expected value of this bet
$0
| Outcome | You win | Probability |
|---|
How to use this calculator
Choose 3 or 4 legs, then enter your wager, the bonus you'll receive back if one leg loses, and your expected bonus retention (how much of a bonus bet you typically keep). For each leg, enter the back odds and the lay odds.
The calculator works out the three ways the bet can go — all legs win, exactly one leg loses (triggering the bonus), or two-plus legs lose — and combines them into an overall expected value. A positive EV means the promo is worth doing repeatedly.
This is a tool only, and none of the information it produces is financial advice. Its accuracy is not guaranteed. Always check your own figures and get advice from your own financial professionals before making decisions. Gambling involves risk — gamble responsibly. For help, visit gamblinghelponline.org.au.