Parlay / Accumulator Calculator

When you stack multiple bets into a single wager, you’re chasing a parlay — or, as it’s known in Europe, an accumulator. The returns can be massive, but so can the risk. Cloudbet’s free Parlay Calculator takes the guesswork out of the equation by instantly showing your total odds and win probability.

 

What is a parlay or accumulator bet?

A parlay (or accumulator) combines multiple bets into one. Every leg must win for your parlay to cash — if one fails, the whole ticket loses. Because each leg’s odds multiply, successful parlays can turn small stakes into large wins.

How parlays work in sports betting

Each selection (leg) builds on the last. The odds compound with every win, creating exponential potential returns — but also increasing risk.

Make sure to input decimal odds. Use Cloudbet’s free Odds Converter if you’re using American or fractional odds, or calculate your payout with the Bet Payout calculator.

Combined odds:

Implied win %: