Odds calculator
Convert between American, decimal and implied chance, take the margin out of a two-way market, and see what a bet pays and the win rate it needs. To compare books on real props, see line shopping.
Odds converter
Type any one; the others follow.
Remove the vig
Enter both sides of a two-way market (an over and an under, two teams). Each side's implied chance is scaled so the pair sums to 100%: the market's view with its margin taken out. It is an estimate of what the books think, not the true chance.
- Side A fair chance
- 51.1%
- Side B fair chance
- 48.9%
- Fair prices
- -104 / +104
- Margin (hold)
- 4.71%
Payout and break-even
What a winning single bet pays at a price, and the share of bets like it that must win to break even.
- Profit if it wins
- $150.00
- Total returned
- $250.00
- Break-even win rate
- 40.0%
These calculators do arithmetic on the numbers you enter. They do not recommend a bet, a side or an amount, and a price with the margin removed is an estimate of the market's view, not the true chance. Informational only. 21+, 1-800-GAMBLER.