Free tool
Accumulator Calculator
Enter your stake in naira and the decimal odds of each selection. The calculator shows the total odds, the potential return, your profit and what an acca bonus adds on top.
Work Out Your Acca
The calculator assumes every selection wins and the acca bonus is paid on profit. Bookmakers apply bonuses differently, so check their rules. For information only.
How Accumulator Odds Are Calculated
Nigerian bookmakers show decimal odds. Decimal odds already include your stake, so the return on a single bet is simply stake times odds. For an accumulator you multiply the odds of all selections.
Example. Three selections at 1.50, 2.00 and 1.80: 1.50 × 2.00 × 1.80 = 5.40. A ₦1,000 stake returns ₦5,400, which is ₦4,400 profit.
What the acca bonus adds
If the bookmaker pays a 10% acca bonus on winnings, the slip above earns an extra ₦440 (10% of ₦4,400). Some bookmakers count the bonus on the full return instead, which gives a slightly bigger figure. Bonus tables usually grow with each extra leg.
Implied chance
Odds of 5.40 imply roughly an 18.5% chance (1 divided by 5.40) that every selection wins. The bookmaker's margin is built in, so the true chance is a little lower. It is a useful reality check before adding another leg.
Acca Calculator FAQ
How do I calculate accumulator winnings?
Multiply the decimal odds of every selection, then multiply the result by your stake. That gives the total return; subtract the stake to get the profit.
What happens if a match in my acca is postponed?
Most bookmakers treat a void selection as odds of 1.00, so the acca continues with the remaining legs at lower total odds. Check your bookmaker's rules for postponed and abandoned matches.
Can I use fractional odds?
Convert them first: divide the top number by the bottom one and add 1. So 5/2 becomes 3.50 in decimal odds.