Over/Under Helper
See totals (over/under) payouts from the line, both odds and your stake.
How to Use This Calculator
- Pick your odds format
- Enter the line (for example, 2.5 goals or 47.5 points)
- Add the over and under odds
- Type in your stake
- See the payouts, profits and margin
Formula
Payout = Stake × Decimal Odds
Margin = (1 / Over Odds) + (1 / Under Odds) − 1
Lines ending in .5 cannot push. Lines on whole numbers (2.0, 47.0) push if the total lands exactly on the line — the stake is returned.
Frequently Asked Questions
What are over/under bets?
Over/under (also called totals) bets are wagers on whether the combined score, goals or points in a game will end up higher (over) or lower (under) than a posted line. Lines such as 2.5 (soccer) or 47.5 (NFL) are the most common, and that .5 makes sure there can’t be a push.
What if the score lands exactly on the line?
If the line is a whole number (such as 2.0) and the total matches it exactly, the bet pushes, so your stake comes straight back with no profit. Half-point lines (.5) sidestep this completely. Quarter lines (.25, .75) split your stake, so one half pushes while the other half wins or loses.
Why are over/under odds usually around -110?
Bookmakers set the line to draw roughly equal betting on each side. The -110 odds (1.91 in decimal) reflect the usual 4.5-5% bookmaker margin. Sharper books might offer -105 or even -102 on their top markets.
How do I spot value in totals?
Hold the bookmaker’s line up against a model, like Poisson for soccer or points-per-possession for basketball. If your projection is off from the line by more than the margin, that can be a sign of value. And always shop around at several books for the best line and odds.