How We Calculate Football Margins
Calculating football margins is something that is not easy to do, but this is something that has a huge effect on your profit and loss as a punter. If you want to know the easy way to understand it, the lower the margin, the better your profit will be with that bookmaker. The margin is the profit that the new betting site makes, if that is lower, they leave more in the pot for you to win.

If you would like to calculate your own football margins then below is an explanation showing you how to do it.
The below image is of a football game between Liverpool and Chelsea, with the betting odds for each team and the draw. This is all you need to work out the betting margin for an event, you don’t need any special information.
The calculations you need to make are 100 / the odds to win, so there are three calculations for this market.
100/2.10 = 47.62
100/3.60 = 27.78
100/3.40 = 29.41
The next step is to add together the numbers you have created, these are the percentage chance of each outcome happening, so for example, according to the odds, Liverpool have a 47.62% chance of winning.
The total comes to 104.81, which means that a particular game of football is ran using a betting margin of 4.81%, which is the bookmaker’s profit. The smaller the margin, the smaller the profit that your bookmaker will take, so be sure to look out for this when you are comparing new sports betting sites.

Best 10 New Bookmakers
![]() |
£25 | SIGN UP HERE |
18+ New UK customers. Bet £10 on accas with 4+ legs, min odds 3/1 (4.0). Get 4x £5 Free Bets and 50 Free Spins, valid for 7 days on selected bets and games only. T&Cs apply. BeGambleAware.org |
||
![]() |
£10 | SIGN UP HERE |
#ad. 18+. Gamble Responsibly. Gambleaware.org. New customers only. £10 in real money. Bets placed on sports at odds of 2.00 ore more to qualify. Bets must be placed 24 hours within of registration. £10 free bets must be wagered on sports. Cashback is cash without restrictions. - Full Terms Apply |
||
![]() |
£40 | SIGN UP HERE |
New customers only. 7 days to place qualifying bet of £10 at 1/1 (2.0) to receive 4 x £10 Free Bets: 1 x £10 football, 1 x £10 horse racing & 2 x £10 Bet Builders. Free Bets cannot be used on e-sports and non UK/IE horse racing. 7 day expiry. Exclusions apply. Stake not returned T&Cs apply. 18+ GambleAware.org |
||
![]() |
£40 | SIGN UP HERE |
New customers online only. Use code B10G40 on registration. Place a £10 min qualifying bet at 1/1 (2.0) odds or higher across sports or racing. Get £20 Tote Credit, £10 Free Sports Bet, and 50 Free Spins on Big Bass Bonanza within 48 hours. Free bets and Tote Credit expire in 7 days. One per customer. UK & ROI only. 18+. Full T&Cs at Gambleaware.org. |
||
![]() |
0 | SIGN UP HERE |
![]() |
£5 | SIGN UP HERE |
Sign up with Star Sports using promo code ‘STARSPINS,’ deposit and wager £20 on slots to get 50 Free Spins on Big Bass Splash. Spins expire in 7 days, winnings must be wagered 10x before withdrawal. |
||
![]() |
£20 | SIGN UP HERE |
Only available to new verified customers residing in the UK. Place a first bet (min. £10). Get £20 freebet if you lose. T&Cs apply. |
||
![]() |
£10 | SIGN UP HERE |
New customers only. £10 in real money. Bets placed on sports at odds of 2.00 or more to qualify. Bets must be placed within 24 hours of registration. £10 free bets must be wagered on sports. Full terms below. Gambling can be addictive, play responsibly, 18+. |
||
![]() |
£60 | SIGN UP HERE |
Opt in via Copybet App/Web, log in, deposit via Instant bank payment & place a £20+ Single/Acca (2+ selections) bet at 1.9+ odds. UK verified clients only. No Cash-Out.Free bets valid for 7 days. Max payout £500. |
||
![]() |
£10 | SIGN UP HERE |
T&Cs apply. 18+ New customers only. You must place a single win-only bet of £10 or more with odds of evens (2.00) or greater to qualify. Money back as £10 in free bets. Free bet is credited once the qualifying bet has settled. Must use code B10G10 when creating an account. |