Add two or more legs by entering the odds for each individual bet. You can mix odds formats — American, decimal, and fractional — on different legs. The calculator multiplies the decimal equivalents of all legs together to compute the combined parlay odds, then shows the total payout and profit for your chosen stake.

What is a parlay bet?+

A parlay (also called an accumulator or multi-bet) combines two or more individual selections into one wager. All selections must win for the parlay to pay out. The combined odds multiply together, creating a much larger potential return from a smaller stake — but the risk also increases because a single losing leg busts the entire parlay.

How are parlay odds calculated?+

Parlay odds are calculated by converting every leg to decimal format and multiplying them together. For example, a 3-leg parlay with decimal odds of 2.00, 1.50, and 3.00 gives combined decimal odds of 2.00 × 1.50 × 3.00 = 9.00. A $10 stake at 9.00 returns $90 total ($80 profit).

Can I mix different odds formats?+

Yes. Each leg in our parlay calculator has its own format toggle (US, Decimal, Fractional). Enter each leg's odds in whatever format your sportsbook displays them. The calculator converts everything to decimal behind the scenes and multiplies them together for the final result.

Is there a limit to parlay legs?+

Our parlay calculator has no built-in limit — add as many legs as you need. Keep in mind that most sportsbooks cap parlays at 10–15 legs, and each additional selection lowers your overall probability of winning.

What happens if one leg of my parlay loses?+

If any single leg loses, the entire parlay loses. Unlike a teaser or round robin, a parlay requires all selections to win. That's why parlay odds multiply — the bookmaker is compensating for the increased risk of multiple outcomes all hitting.

How much can I win on a parlay?+

Potential payout grows quickly as you add legs. A 2-leg parlay at -110 each pays about +264. A 4-leg parlay at -110 each pays about +1200. Use our calculator to see exactly what your stake would return for any combination of odds.

Is this parlay calculator free?+

Yes. The SportBusy parlay calculator is 100% free with no sign-up required. Use it to build and compare parlays as often as you need.