Accumulator Calculator Ireland — Free Acca Returns Tool

An accumulator calculator multiplies your selections' odds to show the combined return from an acca bet. Enter up to 8 legs below, mark each as won, lost or pending, and see your potential payout instantly — plus the real house edge that compounds with every leg you add. Free, no signup required.

How the Accumulator Calculator Works

An accumulator combines multiple selections into one bet. Each selection's decimal odds are multiplied together to produce the combined (accumulator) odds. The calculator then multiplies the combined odds by your stake to give total returns.

Example: You pick four football teams:

• Team A to win at 2.00
• Team B to win at 1.80
• Team C to win at 2.50
• Team D to win at 1.60

Combined odds: 2.00 × 1.80 × 2.50 × 1.60 = 14.40
€10 stake returns: 14.40 × €10 = €144.00 (€134.00 profit)

Accumulator Types by Number of Legs

Decimal vs Fractional vs American Odds

The calculator accepts all three formats:

• Decimal (European): Include your stake in the return. 2.50 means you get €2.50 back for every €1 staked (€1.50 profit). Most common on Irish and European betting apps.
• Fractional (UK/Ireland traditional): Shows profit relative to stake. 5/2 means €5 profit for every €2 staked (2.50 decimal). Still shown by some Irish bookmakers, especially for horse racing.
• American (moneyline): +150 means €150 profit on a €100 stake. -200 means you must stake €200 to win €100. Used by US-facing operators. Convert: +150 → 2.50 decimal; -200 → 1.50 decimal.

Each-Way Accumulator Calculator

Each-way (E/W) bets place two equal wagers: one for your selection to win, one for it to place (usually top 2–3, depending on the race). The place part pays at a fraction of the win odds — most commonly 1/4 odds for horse racing.

The each-way toggle on this calculator uses 1/4 odds for the place part. For races with fewer runners (5–7 runners, 2 places; 8+ runners, 3 places), the terms vary — always check the bookmaker's terms before placing.