Betting Margin Calculator

The margin calculator allows you to input your odds and see the implied probability and fair odds, as well as how much the bookmaker is charging you.
Selected Odds Format:
American
Fractional
Decimal
ODDS
BOOK
FAIR
PAYOUT
0.00%
0.00%
$ 0.00
0.00%
0.00%
$ 0.00
Margin
0.00%