Bookmaker Margin Calculator
Calculate the overround and true odds from a bookmaker market
How it works
Enter the odds for all outcomes in a market. The calculator shows the bookmaker margin (overround) and what the true fair odds would be without the margin.
Quick Example
If Team A is 2.10, Draw is 3.20, Team B is 3.50 - the market margin is about 5.2%.
Ready to Place Your Bet?
Now that you have done the maths, find the best odds at a trusted South African bookmaker. We have tested and reviewed all 36 licensed SA operators.