Double Bet Calculator: returns on two selections

A double is one bet on two selections. If the first wins, the full return rolls onto the second. Both must win for the bet to pay.

18+. A calculator shows what a bet would return, not how likely it is to win. Set a budget before you bet. Free help: GamCare (UK, 0808 8020 133) · Gambling Care (Ireland).

What is in a Double

1 bets on 2 selections:

Part of the bet	Bets
Doubles	1
Total	1

A double gives a bigger price than two singles in exchange for needing both results. If one selection is void, the bet becomes a single on the other.

How the return is worked out

Each line is settled on its own: the line stake times the decimal odds of every selection in it, multiplied together. A losing selection makes every line it is in return nothing. A void selection counts as odds of 1.0. For each way bets the place part uses place odds: (decimal odds − 1) × place fraction + 1.

line return = stake × odds₁ × odds₂ × … and total return = sum of all line returns

Worked example

£1 a line: A at 2/1 (won), B at evs (won). Total stake £1.00.

Line that pays	Part	Returns
A + B	Win	£6.00
Total return		£6.00
Profit		£5.00

Not included: rule 4 deductions, dead heats, each way extra places and bookmaker bonuses (for example double odds on a single winner). Your bookmaker's settlement is final.

Questions

How do you work out a double?

Multiply the two decimal odds by the stake. £10 on 2/1 (3.0) and evens (2.0) returns 10 × 3 × 2 = £60.

Is a double the same as two singles?

No. Two singles can pay with one winner; a double needs both. The double pays more when both win.

Double bet calculator