Sportsbooks like Bet365, DraftKings, and FanDuel offer attractive “Sign-Up Bonuses” and “Deposit Matches” to get you in the door. But there is always a catch: the Rollover Requirement (also known as Playthrough or Wagering).
A $100 bonus sounds great, but if it requires a “10x Rollover on Deposit + Bonus,” you might have to bet thousands of dollars just to unlock it. Our Sportsbook Promo Calculator doesn’t just calculate the total volume you need to bet; it estimates the Expected Value (EV) of the bonus by factoring in the bookmaker’s margin (vig), helping you decide if the promo is a gift or a trap.
Sports Promo Calculator
* "Estimated Cost" assumes you bet efficiently on standard lines. Betting on parlays or props increases the cost due to higher vig.
How to Use the Rollover Calculator
This tool helps you analyze the profitability of a bonus before you deposit a single dollar. Here is how to navigate the fields:
- Enter Dollar Amounts: Input your Deposit Amount and the Bonus Amount you expect to receive.
- Set the Rollover: Input the multiplier required by the sportsbook (e.g., 5x, 10x).
- The “D+B” Toggle (Crucial): Check the terms and conditions.
- If the rollover applies to the Deposit plus the Bonus (common in US sportsbooks), keep the box checked.
- If it applies to the Bonus Amount only (common in UK/Europe), uncheck the box. This drastically changes the math.
- Advanced (Vig): The calculator assumes a standard margin (Vig) of roughly 4.5% (standard -110 lines). If you bet on high-margin markets like Parlays or Player Props, increase this number to see how much “cost” you will incur while clearing the bonus.
Related Tools: To clear bonuses risk-free using hedging strategies, use our Arbitrage Calculator. To check the implied probability of the bets you are placing to clear the bonus, use the Odds Converter Tool.
Real-World Examples: Good vs. Bad Bonuses
Not all bonuses are created equal. The “Total Volume” required to clear them determines their value.
Example 1: The “Friendly” Match (High Value)
You deposit $100 and get a $100 Bonus with a 3x Rollover on Bonus Only.
- Requirement: $100 (Bonus) × 3 = $300 Total Wagers.
- Cost to Clear: Betting $300 with a standard 4.5% vig will cost you roughly $13.50 in theoretical losses.
- Net Value: $100 Bonus – $13.50 Cost = $86.50 Profit. This is a great deal.
Example 2: The “Rollover Trap” (Negative Value)
You deposit $500 to get a $100 Bonus, but the terms are 10x Rollover on Deposit + Bonus.
- Requirement: ($500 Deposit + $100 Bonus) × 10 = $6,000 Total Wagers.
- Cost to Clear: Betting $6,000 with a standard margin will theoretically cost you roughly $270 in vig losses.
- Net Value: $100 Bonus – $270 Cost = -$170 Loss. Even if you win the bets, mathematically, this bonus is not worth the grind.
Frequently Asked Questions (FAQ)
What is “Vig” or “Juice”?
Vig (Vigorish) is the fee the bookmaker charges to take your bet. On a standard spread bet (-110 odds), you bet $110 to win $100. That extra $10 is the vig. When clearing a bonus, this fee slowly eats away at your bonus balance.
Can I withdraw before completing the rollover?
Usually, no. If you attempt a withdrawal before meeting the wagering requirements, the sportsbook will forfeit the bonus and void any winnings generated from it. Always check the progress bar in your account (or use our tracker) before clicking withdraw.
What are “Minimum Odds” requirements?
Most rollovers require you to bet on odds of -200 (1.50) or higher. You cannot clear a bonus by betting on huge favorites (like -1000 odds) because it carries too little risk. Betting below the minimum odds will not count towards your rollover progress.
What is the difference between “Free Bet” and “Cash Bonus”?
A Cash Bonus is added to your balance and the stake is returned on winning bets. A Free Bet (or Bonus Bet) usually does not return the stake (Stake Not Returned / SNR). This calculator is best suited for Cash Bonuses and Deposit Matches with rollover requirements.