Free accumulator calculator. Add your selections, enter the odds and stake, and instantly see the combined odds and potential returns of your acca.
Frequently asked questions
How are accumulator returns calculated?
Multiply every selection's decimal odds together, then multiply by your stake. The calculator does this instantly and also shows your potential profit (returns minus stake).
What's the optimal accumulator size?
Most disciplined bettors stick to 3–5 legs. Each extra leg roughly halves your win probability, so an eight-fold acca rarely offers true value relative to the price. Our Acca Strategy guide explains the maths in more detail.
Can the calculator handle each-way or boosted odds?
It handles standard win-only accumulators. For each-way doubles or bookmaker price boosts, calculate the boosted odds first and enter the boosted figure as the leg odds — the multiplication still works exactly the same.