TRANSACTION · MLBDodgers: Sent RHP Blake Treinen on a rehab assignment to Ontario (CAL) (Aug 15)
TRANSACTION · MLBDiamondbacks: Sent RHP Drey Jameson on a rehab assignment to Reno (PCL) (Aug 15)
TRANSACTION · MLBRangers: Reinstated RHP Jakob Junis from the 15-day IL (Aug 15)
TRANSACTION · WNBASun: Matched Ashlon Jackson's offer sheet from Los Angeles (Aug 15)
TRANSACTION · WNBASparks: Signed G Tonie Morgan (Aug 15)
TRANSACTION · NFLBengals: Signed CB Matthew McDoom (Aug 15)
Free during beta —to track favorites + alerts

Free tool

Bonus Bet
Calculator

Enter a bonus amount and price. We estimate the cash value when the bonus stake is not returned.

Questions, answered

Is the bonus stake returned?+

Usually no. Most bonus bets return profit only, so a $100 bonus at +200 returns $200 profit if it hits, not $300 including stake.

Why does conversion depend on odds?+

Longer odds return more profit when they hit, but hit less often by implied probability. The calculator balances those two pieces.

Is this cash value guaranteed?+

No. It is an expected cash estimate from the posted price. The actual result is either the profit if it hits or zero if it misses.

Expected cash
$66.67
66.7%
Profit if it hits
$200.00
@ +200
Implied prob
33.3%
posted price
Bonus stake
Not returned
profit only

Bonus bets usually return profit only. The bonus stake is not returned, so this cash estimate is lower than a normal cash bet with the same listed price. 21+ · Bet responsibly

More like this — daily graded slate + new free tools

How it works

  • Bonus bet value is based on profit only because the bonus stake is not returned.
  • Expected cash = profit if it hits × the listed price's implied probability.
  • Conversion percentage = expected cash ÷ bonus amount.

The honest explainer

What a bonus bet is actually worth

A bonus bet pays winnings only — the stake never comes back. That single rule is why a '$100 bonus bet' is not $100: its cash value is capped well below face, and the ads pricing it at face value are counting on you not doing this arithmetic.

The standard way to realize its value is conversion: place the bonus on one side, cash on the other, and lock a fraction of face value regardless of result.

Worked example

$100 bonus bet on a +250 underdog (winnings if it hits: $250). The favorite side sits near −300. Hedge with $187.50 cash at −300: if the dog wins, $250 − $187.50 = $62.50; if the favorite wins, $187.50 ÷ 3 = $62.50. Either way ≈ $62.50 locked — a 62.5% conversion, close to the practical ceiling. Used on a heavy favorite instead, the same $100 bonus converts to pocket change.

When NOT to use it

  • When you can't actually get the opposite side down at size — conversion math assumes both legs exist at quoted prices.
  • Before reading the terms: rollover requirements, market restrictions, and expiry dates all cut the realizable value below the calculator's number.
  • The legs aren't simultaneous — a line move between placing them changes the locked amount.

The part the paid-tool ads leave out: You will get limited — read the honest guide →