Accumulator Calculator

Enter your stake and the odds for each leg — decimal (2.50) or fractional (6/4) — to see combined odds, total return, and profit.

Combined odds
Total return
Profit
Implied win chance

Accepts decimal (2.5), comma decimal (2,5), and fractional (6/4) odds. Void legs: enter 1.

How accumulator returns are calculated

An accumulator multiplies every leg's decimal odds together, then multiplies by your stake:

Return = stake × odds₁ × odds₂ × … × oddsₙ

A £10 four-fold at 1.50, 1.80, 2.00 and 2.20: 10 × 1.50 × 1.80 × 2.00 × 2.20 = £118.80 returned (£108.80 profit). One losing leg and the whole bet loses — that's the deal you're making.

The honest maths of accas

Two things compound in an accumulator, and only one of them is in your favour:

That doesn't make accas "wrong" — a small stake for a big possible payout is a legitimate, fun bet — but it does make them expensive. If you bet accas regularly, track them honestly: most bettors dramatically overestimate how their accas have actually performed.

FAQ

What happens if one leg is void or postponed?

Most bookmakers settle a void leg at odds of 1.00 — your acca drops to the remaining legs rather than losing.

Is an accumulator the same as a parlay?

Yes — acca is the UK name, parlay the US name. Same multiplication, same all-must-win rule.

Should I cash out an accumulator early?

Cash-out offers are priced with a margin in the bookmaker's favour, so systematically cashing out costs you value. Whether it's right in a given moment depends on the live odds — Zort records cashed-out bets with their effective odds so you can see what your cash-out decisions have actually cost you over time.

Know what your accas really return

Zort's AI scanner reads multi-leg slips automatically and tracks every acca's real result — so after the season you'll know your acca ROI, not just remember the one that landed.

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