Odds & Probability Converter
Convert between probability percentage, decimal odds, fractional odds, and American odds.
Probability40.000%
Decimal probability0.400000
Decimal odds2.500
Fractional odds3/2
American odds (Moneyline)+150
Odds notation (for:against)0.400 : 0.600
Implied probability40.00%
Format Reference
Decimal oddsPayout per $1 stake (incl. stake)
Fractional oddsProfit / stake (e.g. 3/2 = $3 per $2)
American + (underdog)Profit per $100 bet
American − (favorite)Bet needed to win $100