Sports Tool
Parlay / Accumulator Calculator
Add your bet legs to calculate combined odds, potential payout, and true win probability.
Odds Format:
Leg 12.00
Leg 21.80
Combined Odds
3.60
Total Payout
€36.00
Profit
€26.00
Win Probability
27.8%
Leg Breakdown
Leg 12.00~50.0% winRunning: 2.00
Leg 21.80~55.6% winRunning: 3.60
Parlay Risk Warning
ALL legs must win for the parlay to pay out. Adding more legs multiplies odds but also multiplies risk exponentially. A 5-leg parlay at 50% per leg has only a 3.1% win probability.
EV Tip
Parlays are EV-negative at bookmakers due to the built-in margin on each leg. At a 5% edge per leg, a 5-leg parlay has a 22.6% negative expected value. Single bets have better EV.