FootballAccas

Betting calculators

Fast, free calculators for every accumulator and value-betting question. No sign-up, no ads, no nonsense. Each one shows its working.

Accumulator calculator
Add any number of legs at any odds. We multiply them together, apply your stake, and show the return.
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Each-way acca calculator
Each-way accas split your stake across a win acca and a place acca. Set the place fraction per leg.
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Lucky 15 calculator
15 bets across 4 selections — 4 singles, 6 doubles, 4 trebles, 1 four-fold. Bookmaker bonus rules built in.
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Lucky 31 calculator
5 selections, 31 bets. Singles through to a five-fold accumulator. Bonus rules included.
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Lucky 63 calculator
6 selections, 63 bets, one six-fold at the top. The largest of the lucky family.
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Yankee calculator
4 selections, 11 bets. Doubles, trebles and a four-fold — no singles, so you need at least two winners for any return.
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Trixie calculator
3 selections, 4 bets. Three doubles and a treble. Needs at least two winners.
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Patent calculator
3 selections, 7 bets. Trixie plus three singles, so any one winner returns something.
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Heinz calculator
6 selections, 57 bets. Named after the 57 varieties. No singles — needs 2+ winners.
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Goliath calculator
8 selections, 247 bets. The biggest standard system bet. No singles.
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Kelly criterion calculator
The Kelly formula maximises long-term bankroll growth by sizing stakes to your true edge.
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Expected value calculator
EV tells you whether a bet wins or loses money long-term. We compute it from your fair price vs the offered price.
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Bookmaker margin calculator
The margin is what the book takes out of the market. Lower margin = better price for you.
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Dutching calculator
Back two or three outcomes in proportion so the return is identical no matter which lands.
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Which calculator do I need?

For accumulators: Use the accumulator calculator for simple straight accas. For each-way accas, use the each-way version.

For system bets: Lucky 15 (4 picks, 15 bets), Lucky 31 (5 picks), Lucky 63 (6 picks). For Yankees, Trixies, Patents, Heinz and Goliaths, use the dedicated pages.

For staking strategy: Kelly Criterion for optimal stake size, EV calculator for whether a bet has value at all.

For price comparison: Margin calculator for how much the book is taking out, dutching calculator for splitting stakes to lock returns.