Accumulator Calculator
Combined price for a multi-leg accumulator.
Enter decimal odds per leg; tool shows combined decimal and approximate American equivalent.
Accumulator Calculator
Adjust inputs to see updated results.
Table of Contents
How to Use This Calculator
Paste decimal odds for each leg separated by commas or spaces. The tool multiplies them to produce combined decimal odds and an approximate American equivalent.
All legs in decimal
Convert American prices first if needed.
Independent legs
Assumes prices multiply like a standard acca—correlated legs break independence.
Read combined price
Use it to compare against the book’s parlay payout.
Same-game parlays
Books use proprietary pricing—this is naive multiplication only.
Multiplying Decimals
dacca = d1 × d2 × … × dn
Examples
Example 1 — Default string
1.91, 1.91, 1.91 → combined decimal ≈ 6.97—verify in the tool.
Example 2 — Two-leg parlay
2.10 and 1.80 → product 3.78. Compare juice vs straight mult at your book.
Example 3 — Longshot acca
Many legs above 2.0 explode variance—bankroll caution.
Frequently Asked Questions
No—same-game multis need book-specific pricing.
The tool shows American ≈ from combined decimal via standard conversion.
Not modeled—adjust inputs after settlement rules apply.
Under independence, joint probability is product of fair probabilities; odds reflect that structure before vig.
Each leg must be a valid decimal price above 1.00.
