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Updated July 5, 2026 · 10 min read by Sam Smith

Every sportsbook wants you to think a "$100 free bet" is $100. It isn't, and the gap between the number on the promo and the cash you can actually withdraw is the whole reason this question keeps getting searched. I've run the real conversion math on hundreds of these bonus-bet offers across DraftKings, FanDuel, BetMGM, and Caesars, and the honest answer is that a free bet is worth real money, just not the money the marketing implies. Here's what a free bet is actually worth, and how to make sure you keep most of it.
Yes, free bets are worth claiming, but their real value is roughly 70 to 80 cents on every advertised dollar, not the full face amount. A $100 free bet (books also call it a bonus bet or a bet credit) is worth about $78 in withdrawable cash if you convert it correctly. Let it expire, or fire it on a short favorite the way most people do, and that same $100 credit is worth closer to $30, or nothing at all. So an already-awarded free bet is usually worth converting, as long as the terms are reasonable. Whether it's worth the full headline depends entirely on what you do with it after it lands in your account.
A normal cash bet returns your stake plus your profit. Bet $100 of your own money at +200 (decimal 3.00) and a win pays $300 back: your $100 stake plus $200 in winnings.
Free bets work differently, and this single mechanic is the reason they're worth less than they look. With a free bet, the stake is not returned. That same $100 at +200 pays only the $200 profit when it wins. The book keeps the $100 "stake" because you never risked your own cash. Nearly every U.S. sportsbook promo, from "Bet $5, get $150 in bonus bets" to refer-a-friend credits, is a stake-not-returned offer.
That's why a free bet dumped on a -200 favorite is the worst thing you can do with it. If the favorite loses, you get zero. If it wins, you collect a tiny sliver of profit and the book has paid out the least it possibly could. The face value only turns into real money once you play the credit smartly, which brings us to what it's genuinely worth.
The reliable way to turn a bonus bet into cash is to hedge it: place the free bet on one side of a two-way market at one book, then back the other side with your own cash at a second book. Because in a clean two-way market one side usually wins, you collect on almost every outcome, keeping the bulk of the credit's value regardless of which side lands. That process is called free bet conversion, and it's the difference between a $100 credit being worth $78 and being worth $30.
How much you keep is your conversion rate, and the biggest lever on it is the odds you place the free bet at. Because a stake-not-returned bet only ever earns profit, longer odds pay more profit per dollar and therefore convert at a higher rate. Roughly how it scales (illustrative, before you line-shop the hedge):
| Free Bet Placed At | Approx. cash you keep (per $100) |
|---|---|
| -110 (≈1.91) | $45–$50 |
| +100 (2.00) | $50 |
| +200 (3.00) | $65 |
| +300 (4.00) | $74 |
| +400 (5.00) | $78–$80 |
| +500 (6.00) | $80–$83 |
That table is the math behind the 70 to 80 percent rule of thumb you'll see quoted everywhere, and it's why a free bet is worth taking but never worth the full sticker price. Anything above about 70 cents on the dollar is a strong conversion. The lesson runs opposite to how most casual bettors use a free bet: instead of a "safe" favorite, you want a longer-odds side (the +300 to +500 range is the sweet spot) with a well-priced hedge on the other side.
Here's the value made concrete. Say DraftKings drops a $100 free bet in your account. (The books, sides, and prices below illustrate the math, not a live line; a converter surfaces the actual best pairing for you.)
The hedge stake comes from a simple formula: hedge = free-bet profit ÷ decimal odds of the hedge side, here $400 ÷ 1.244 ≈ $322. One honest caveat: this is low-risk, not risk-free. Lines move between your two bets, books can void or limit wagers, and a market can settle as a push. Treat the numbers as the math when both bets land at the listed prices, not as a promise.
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Notice the lever hiding in that example. The +400/-410 pairing is a low-hold one you get by shopping the hedge across books. Take a juicier hedge like -450 and the same free bet converts closer to 73 percent instead of 78. The other side of your hedge is a cash bet, so pricing it against the full board rather than one book is exactly what pushes your real conversion toward the top of the band. That price-shopping discipline is the whole point of OddsShopper.
The 70-to-80-cent value assumes you actually convert. Here's where a free bet quietly becomes worth far less:
None of these make free bets not worth claiming. They're the difference between a claimed 78 percent and a realized one.
"Free bet" is one of several promo types, and they're not equal. Here's how the real value stacks up:
| Promo Type | What you actually get | Real value |
|---|---|---|
| Free Bet / Bonus Bet | Stake not returned; a win pays profit only | ~70–80% of face via conversion |
| Deposit Match | Bonus cash that carries a rollover/playthrough | Often well below face after the required turnover |
| Odds Boost | A better price on a bet you place with your own money | Only worth it when the boosted price beats the fair number |
The free bet is the cleanest of the three to bank as cash, because the conversion math is straightforward and the value isn't buried under a playthrough requirement. An odds boost is only worth it when the boosted price is genuinely better than the true odds, and a deposit match can look bigger while paying out less once you factor in the rollover.
Squeezing the full 78 cents on the dollar comes down to a short checklist:
Are free bets worth it? Usually, yes. An already-awarded free bet is worth using, because letting it expire turns the credit into $0. Its real cash value is about 70 to 80 percent of the advertised amount when you convert it, so a $100 free bet is worth roughly $78 in withdrawable money.
How much is a $100 free bet worth? About $78 in cash if you convert it well, and up to the low $80s on a longer-odds play with a sharply-priced hedge. Bet it straight on a short favorite and it's worth closer to $30 to $40; let it expire and it's worth $0.
Why is a free bet worth less than its face value? Because the stake is not returned. When a free bet wins, the book pays only your profit and keeps the stake, so a $100 free bet at +200 pays $200, not the $300 a $100 cash bet would return.
Should I bet a free bet on a favorite or an underdog? An underdog at longer odds. A stake-not-returned bet only earns profit, and longer odds pay more profit per dollar, so you convert at a far higher rate placing the free bet on a +300 to +500 side and hedging the favorite for cash.
Are bonus bets the same as free bets? Mostly. "Bonus bet," "bet credit," and "free bet" usually refer to the same kind of stake-not-returned promo under different sportsbook branding (DraftKings and FanDuel tend to say "bonus bet"). Most work the same way, but always check whether the stake is returned and whether the winnings carry any restrictions before you convert.
Do free bets expire? Almost always, often within 7 days. An expired free bet is worth nothing, so convert it as soon as it lands rather than saving it for a game you like.
Can you withdraw a free bet directly? No. You can't cash out the credit itself, and books usually prohibit or void betting both sides of a game with it at the same sportsbook. The value only becomes withdrawable once a free-bet wager wins and pays profit into your balance, which is why the hedge play exists.
Is converting a free bet legal? The hedging itself is just placing bets at two sportsbooks, which is legal only where regulated sports betting is offered and you meet your state's age and location requirements. Individual books set their own promo terms, so use separate books only where the promo terms allow it and follow each sportsbook's rules.
Free bets are worth it, full stop, but they're worth about 78 cents on the advertised dollar, not the full sticker. The value is real and it's yours to keep, as long as you convert the credit instead of letting it expire or blowing it on a favorite. Place the free bet long, hedge the other side for cash at a second book, and shop that hedge for the best number.
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Sam Smith writes betting strategy and tool guides for OddsShopper, translating the team’s data and models into practical, +EV-focused advice.

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