Sportsbook ↔ Exchange Odds Converter

A bookmaker (also called a Sportsbook) sets the odds themselves and accepts your bets directly. For example, a bookmaker may offer Decimal odds of 2.00 on a team to win. If you place a £10 Back bet and the team wins, you receive £20 back (£10 profit plus your £10 stake).

A betting Exchange works differently. Instead of betting against a bookmaker, you bet against another user. If a user has placed a Lay bet at 2.02 Decimal odds and you choose to Back that outcome, the Exchange matches the two bets together. If your £10 Back bet wins, your return before commission is £20.20 (£10.20 profit plus your £10 stake). The Exchange then charges commission on your profit.

Our converter accounts for this Exchange commission when calculating equivalent prices.

Not necessarily. Exchange bets are subject to commission, while bookmaker odds already include the bookmaker's margin.

For example, a £100 Exchange Back bet at 2.02 Decimal odds would return £202, giving you a £102 profit. If the Exchange commission rate is 2%, the commission would be £2.04 (£102×2%), reducing your final profit to £99.96.

A bookmaker bet at 2.00 odds would provide a £100 profit, making the bookmaker price slightly better in this example.

This is why comparing bookmaker and Exchange prices after commission is important.

Enter your odds in our tool to compare equivalent prices instantly.

No. Exchange odds can be higher or lower than bookmaker odds depending on the market, available liquidity and demand.

Exchange prices are often competitive because they are set by other bettors rather than a bookmaker, but Exchange commission must also be taken into account. The highest displayed price is not always the best price after commission.

Our tool helps you make this comparison instantly.

Use the commission rate charged by your Exchange account. The default setting in our tool is 2%, but you can change it in Settings if your Exchange charges a different rate.

Commission is usually charged on your net winnings (profit) in a market rather than your stake. The exact rate depends on the Exchange and your account details.

An Exchange Back bet is similar to a traditional bookmaker bet - you are betting that an outcome will happen.

A Lay bet is the opposite - you are betting that an outcome will not happen. When you place a Lay bet, you are effectively taking the role of the bookmaker and offering odds to another bettor.

For example, in an Over/Under 2.5 Goals market:

• Back Over 2.5 Goals → you win if the match has 3 or more goals.
• Lay Over 2.5 Goals → you win if the match has 0, 1 or 2 goals.

The bettor placing the Back bet and the bettor placing the Lay bet are taking opposite sides of the same market.

In markets where two opposing outcomes are available, placing a Back bet and Laying the opposite outcome can create the same position.

Our tool helps you calculate equivalent Exchange Back and Exchange Lay odds for opposite outcomes.

Yes. The conversion logic works with any betting Exchange.

Simply enter in Settings the commission rate charged by your Exchange, and the tool will calculate equivalent prices based on that rate.