If you enter the odds that are available to you on both sides of an arbitrage bet and the amount you want to place on one side, this calculator will show you how much you should bet on the other side and conduct a few other useful calculations for you.
Example 1: Arbitrage [click here]
Football match Real Madrid versus Barcelona. You see that sportsbook1 offers the odds of 1.8 on over 2.5 goals and sportsbook2 offers 1.9 on under 3.5 goals. You believe that there is a good chance that exactly 3 goals will be scored and both sides of this arbitrage might win.
In order to evaluate this arbitrage, you can use this calculator. Enter 1.8 into Odds1, 1.9 into Odds2 and enter the amount you can place on the first side (over 2.5 goals) into Amount1. The calculator will show you how much you should bet on the other side (under 3.5 goals) in the specified currency (which can be different from currency of the first side). It will also show you how much you will lose if more or less than 3 goals will be scored, your net profit if exactly 3 goals will be scored (and both sides of the arbitrage win) and the effective odds of this arbitrage, i. e. the odds you actually have on exactly 3 goals to be scored and the probability of winning you need for the arbitrage to be profitable.
Example 2: Surebet and Arbitrage [click here]
Tennis match Federer versus Nadal. You see that sportsbook1 offers the odds of 2.1 on Federer and sportsbook2 offers 2.2 on Nadal. You enter the values into the form as in Example 1.
The calculator will show you that this is indeed a surebet. It will calculate how much you should bet on the other side and how much in per cent and in absolute amount you will win if you place the specified amounts on both sides of this surebet.
One side of the arbitrage/surebet:
Odds1: 1.8 Amount1: 100 EUR
Other side of the arbitrage/surebet:
Odds2: 1.9 Amount2: 94.74 EUR
This is not a surebet. Odds2 would have to be higher than 2.250 for it to be a surebet.
If only one side of this arbitrage wins, you will lose 7.57% of the combined stake (net loss of 14.74 EUR).
If both sides of this arbitrage win, you will win 84.86% of the combined stake (net profit of 165.26 EUR).
Effective odds of this arbitrage: 12.21 (You need both sides to win more than 8.19% of the time for it to be profitable.)