Nigerian-owned, edited in Lagos
Accumulator Calculator
Enter your stake and up to 12 legs of decimal odds. We multiply the legs, apply any acca boost, and show the total stake, potential return, and implied probability.
Accumulator Calculator
Add up to 12 legs. We multiply the decimal odds and show your potential return.
How an acca works
An accumulator combines multiple selections into a single bet. Every leg must win for the bet to pay. The odds multiply, which is why returns grow so quickly, and why accas are fun but high-variance.
Example: four legs at 1.80 each. Combined odds = 1.80 × 1.80 × 1.80 × 1.80 = 10.50. A NGN 1,000 stake returns NGN 10,500, a profit of NGN 9,500. Lose one leg, lose the lot.
Our Accumulator Strategy guide covers how to build realistic accas instead of hopeful ones.
The editor's notes on this calculator
What this calculator does
Enter the stake and decimal odds for up to 12 legs of an accumulator. The calculator returns the cumulative decimal odds (product of all legs), the potential total payout, and the implied probability of the whole acca landing.
Worked example
Four legs at 1.70, 1.90, 2.10 and 2.25. Cumulative odds: 1.70 x 1.90 x 2.10 x 2.25 = 15.27. N500 stake. Total payout: 15.27 x 500 = N7,635. Implied probability of hit: 1 / 15.27 = 6.55%. That is a one-in-15 chance.
Margin compounding
If each leg has a 2% bookmaker margin, the acca has roughly a 1.02^4 = 8.2% compounded margin. That is why long accas are harder to beat than singles, mathematically.
Our rule of thumb
Three to four legs is the realistic sweet spot. Eight legs is a lottery ticket. Twelve legs is a waste of a stake.
Responsible play
Calculators compute returns, not outcomes. Every bet can lose. If betting is stressing you out or costing more than you can afford, please stop. Get help.