Sportsbook Bonus Calculator
A headline bonus is not what you get. Enter the terms below to estimate the wagering required, the drag the house edge takes out of that wagering, and what the offer is plausibly worth to you.
ESTIMATE only — not a guarantee. Every figure on this page is a model based on the numbers you enter and an assumed house edge. Real results vary with the bets you place, and operators can change terms at any time. Always read the live bonus terms.
Bonus terms
Results Estimate
- Bonus amount
- $500
- Wagering required
- $10,000
- Estimated drag at 4.5% edge
- −$450
- Usable value (estimate)
- $50
Headline offer: $500 · Estimated usable value: $50 (10% of the headline)
Minimum odds of -200 restrict which bets count toward the requirement, which usually pushes real drag above the modelled figure.
Risk tags
- High turnover — You must wager 20.0× your deposit before the bonus is releasable.
- Sticky bonus — Rollover is calculated on deposit + bonus, so your own money is locked into the wagering requirement alongside the bonus.
Worked example
A $500 deposit with a 100% match and 10× rollover on deposit + bonus means $10,000 of turnover. At a 4.5% house edge that turnover is expected to cost about $450, leaving roughly $50 of usable value on a $500 headline bonus. That is the whole point of this page: the advertised number and the usable number are not the same thing.
How the model works: turnover = (deposit + bonus) × multiple, or bonus × multiple on a bonus-only basis. Drag = turnover × house edge. Usable value = bonus − drag, then clipped by max cashout where one is stated. It assumes you bet at roughly the house edge you entered and ignores variance entirely.
Before you claim anything
18+ / 21+ where applicable. Betting should be entertainment, never income. If it stops being fun, stop — U.S. help: 1-800-GAMBLER. Offshore betting rules vary by state; users must confirm local regulations.
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