An odds converter changes betting odds between American, decimal, fractional, and implied probability formats. The same price can be written as +150, 2.50, 3/2, or 40.00% implied probability. This calculator also shows profit and total payout from the stake you enter.
An odds converter changes betting odds between American, decimal, fractional, and implied probability formats. The same price can be written as +150, 2.50, 3/2, or 40.00% implied probability. This calculator also shows profit and total payout from the stake you enter.
Implied Probability = 1 / Decimal Odds; Payout = Stake × Decimal OddsConvert the entered odds to decimal odds first. American +150 becomes 2.50, so implied probability is 1 ÷ 2.50 = 40.00%. With a $50 stake, profit is $50 × (2.50 - 1) = $75 and total payout is $125.
Convert American, decimal, fractional, and implied probability odds, then see profit and total payout from your stake.
Use this odds check next
Convert the line first, then move into fair-price, bet-sizing, or hedge math without re-entering the basics.
No sportsbook account sync, live odds feed, or automatic bet placement was used.
The stake field turns this converter into a moneyline payout calculator: profit is stake times net odds, while total payout includes your original stake.
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Compare platforms after the math, not before it. Keep the calculator fast, then open the platform guide when you are ready to shop offers.
For informational and educational purposes only. Not financial or gambling advice. All calculations assume odds remain constant and bets execute as entered. Actual results may vary. Gambling involves risk of loss.
For positive American odds, implied probability is 100 divided by odds plus 100. For negative American odds, it is the absolute odds divided by absolute odds plus 100. For example, +150 is 100 ÷ 250 = 40.00%, while -200 is 200 ÷ 300 = 66.67%.
Decimal odds show total payout per dollar staked. Multiply your stake by decimal odds to get total payout. Profit is total payout minus the original stake.
Not always. Implied probability is the break-even rate encoded by the posted odds. Sportsbook markets usually include vig, so use a no-vig calculator when you need a fair probability estimate from both sides of a market.
Implied Probability
The probability of an outcome as implied by the betting odds, including the bookmaker's margin.
Moneyline
A bet on which team or player will win a game outright, with no point spread.
True Odds
The actual mathematical probability of an outcome, without any bookmaker margin.
Vig (Vigorish)
The commission a sportsbook charges on a bet, built into the odds.
Expected Value (EV)
The average amount you can expect to win or lose per bet over time.
Bankroll Management
The practice of managing your gambling funds to minimize the risk of going broke.