Calculator
Bet Calculator: Odds, Each-Way and Multiples
Type the stake and the price, fractional or decimal, and the calculator gives the return. Tick each-way for the place part. Below it, the sums it uses, so you can check any slip by hand.
By Conor FurlongChecked
This bet calculator works out the return on a bet from your stake and the odds, in fractional or decimal form, and handles each-way bets with the place fraction you choose. Enter the figures, read the return; the method behind it is set out below so you can check any slip yourself.
How to use the odds calculator
- Enter the stake per bet in euro.
- Enter the price as a fraction (9/4) or a decimal (3.25).
- For a horse racing bet, tick each-way and pick the place terms shown on the market, typically 1/4 or 1/5.
- Read the total return and the profit. The return includes your stake.
The calculator settles the bet as written. It cannot know about a late withdrawal, a dead heat or a firm's best-odds concession, so if any of those apply, the operator's settlement is the one that counts.
Single bet calculator: the formula
Fractional: return = stake x (top / bottom) + stake. EUR 20 at 11/4 wins EUR 55 and returns EUR 75. Decimal: return = stake x decimal. EUR 20 at 3.75 returns the same EUR 75, because 11/4 and 3.75 are one price written two ways. Our fractional odds guide has a full conversion table.
Double and treble calculator
Multiply the decimal prices of every leg, then the stake. EUR 10 double at 2/1 and 5/4: 10 x 3.00 x 2.25 = EUR 67.50. EUR 2 treble at 2/1, 3/1 and evens: 2 x 3.00 x 4.00 x 2.00 = EUR 48. One loser and the bet is down. Full-cover bets such as the Lucky 15 are a batch of these multiples added together; the make-up of each is on our accumulators page.
Each-way and horse racing returns
An each-way bet is two equal bets, so the outlay is twice the unit stake. The place half is settled at the win odds divided by the place fraction. EUR 10 each-way at 8/1 with 1/5 terms: the win half returns EUR 90, the place half at 8/5 returns EUR 26. If the horse wins, EUR 116 comes back from EUR 20; if it only places, EUR 26. More on terms and when the bet pays in each-way betting explained.
Rule 4 by hand
When a runner is withdrawn late, winnings (not stakes) on the rest are cut on a sliding scale tied to the withdrawn horse's price. A 3/1 withdrawal carries a 25p in the euro deduction. EUR 10 on a 5/1 winner would normally win EUR 50; after the deduction it wins EUR 37.50 and returns EUR 47.50. Nothing is deducted when the withdrawn horse was bigger than 14/1, and ante-post bets are outside Rule 4.
What this calculator is not
It is not a matched betting calculator: it does not work out lay stakes on an exchange. Nor does it predict anything. It prices the bet you have chosen, and only that. A price tells you what you get if the selection wins; it says nothing reliable about whether it will.
Betting is for adults only (18+). If you are using a calculator to chase back a loss, stop there; the responsible gambling page lists free Irish support.
Readers' questions
- Does the return include my stake?
- Yes. The return is stake plus profit. EUR 10 at 2/1 returns EUR 30, of which EUR 20 is profit.
- Can I use decimal odds in the calculator?
- Yes. Enter 3.50 or 5/2; both describe the same price and give the same return.
- How is an each-way bet calculated?
- As two bets of the same stake. The win half is paid at full odds, the place half at the odds divided by the place fraction, usually 4 or 5.
- Why is my bookmaker's settlement different from the calculator?
- Late withdrawals (Rule 4), dead heats, best-odds concessions or boosted prices change the settlement. The operator's terms decide the final figure.