AI Free tool · Updated 7 Sept 2026
Bet Calculator for Lucky 15, Each Way and More
Work out stakes and returns before you place a multiple. Enter the odds, set each result and the totals update as you type.
How to use the bet calculator
Pick the bet type first, because it decides how many selections you need: one for a single, three for a Trixie or Patent, four for a Yankee or Lucky 15. Enter the unit stake, which is the amount on each line rather than the total you hand over. Then type the odds for each selection and set its result to won, placed or lost. The four totals underneath update straight away: number of bets, total stake, total return and profit.
Tick each way if you want the place part included. The place terms box switches on, and you can choose one quarter or one fifth of the odds. Most UK handicaps with eight or more runners pay one quarter or one fifth, but the terms are set race by race and some new bookmakers pay extra places on big meetings, so take the figure from the bet slip you are actually looking at.
The calculator is built for checking a bet before you place it and for settling one afterwards. It does not need an account, it does not store anything, and nothing you type leaves your browser.
Which multiple bet suits you
A multiple spreads one idea across several lines. The more lines a bet has, the more it costs and the less each winner has to carry it. That is the trade you are making when you move from a treble to a Patent or from a Yankee to a Lucky 15.
| Bet | Selections | Bets per line set | Smallest result that returns something |
|---|---|---|---|
| Single | 1 | 1 | the winner |
| Double | 2 | 1 | both winners |
| Treble | 3 | 1 | all three winners |
| Trixie | 3 | 4 | two winners |
| Patent | 3 | 7 | one winner |
| Yankee | 4 | 11 | two winners |
| Lucky 15 | 4 | 15 | one winner |
A treble pays the most for the stake when everything lands, because all three prices multiply together. Miss one leg and it pays nothing. A Patent covers the same three horses with singles and doubles as well, so a single winner still returns money, but the stake is seven times larger. Neither is better in general. The question is how confident you are in each pick and how much you want to spend for that cover.
Lucky 15s are popular on Saturday racing and at the big festivals because one winner pays something and four winners at decent prices pay a lot. Many bookmakers add a bonus on Lucky 15s, such as double odds if only one selection wins. Those bonuses are promotions, not part of the bet itself, so the calculator leaves them out. Read the terms on the site you use and add any bonus by hand.
Worked example: a Lucky 15 at £1
Take four horses at 5/2, 2/1, evens and 7/4, which are the defaults loaded in the calculator. If all four win, the singles return £3.50, £3, £2 and £2.75. The six doubles multiply pairs of decimal prices, so 3.5 times 3 is 10.5, and so on. The four trebles multiply three prices and the fourfold multiplies all four: 3.5 x 3 x 2 x 2.75 = 57.75. Added together, fifteen £1 bets return £201.50 for a £15 stake.
Change one result to lost and watch how the total falls. The fourfold, three of the trebles and three of the doubles go, because every line containing the loser is dead. That is the honest picture of a Lucky 15: the big return depends on the long lines, and the long lines need everything to win.
Each-way terms and new bookmakers
New betting sites often compete on racing with extra places, paying four places in a race where most pay three, or improved terms on festival handicaps. An extra place can turn a losing each-way bet into a small profit, so it is worth comparing. The horse racing betting sites page sets out what each site on our list states about racing, and our guide to each way betting explains the maths in more detail.
When you are choosing where to place the bet, our list of new betting sites compares welcome offers, stated payout windows and who holds the licence. Before opening any account, you can check the domain against the Gambling Commission register in our licence tracker.
Odds formats in one place
British racing still talks in fractions, football apps often show decimals, and the implied chance is the number that tells you what the price really says. The converter turns any one of them into the other two. Evens is 2.0 in decimal and a 50 per cent chance. 11/4 is 3.75, or about 26.7 per cent. When the chances implied by every runner in a race add up to more than 100 per cent, the difference is the bookmaker’s margin, which is why comparing prices between sites is worth the minute it takes.
Set a budget before you build a multiple, and stick to it whatever the calculator says a four-timer could pay. If betting stops feeling like entertainment, our responsible gambling page lists the free support available in the UK.
Ask the stewards
A few things worth knowing.
6 questions answered
- How many bets is a Lucky 15?
- What is the difference between a Yankee and a Lucky 15?
- How is the place part of an each way bet worked out?
Need to talk to someone?
National Gambling Helpline. Free, confidential, 24 hours a day.
Tools every UK licensed bookmaker must offer:
- Deposit limits
- Time-outs
- Reality checks
- Self-exclusion and GamStop
How many bets is a Lucky 15?
Fifteen: four singles, six doubles, four trebles and one fourfold on four selections. At £1 a line it costs £15, or £30 each way, because each way doubles the number of bets.
What is the difference between a Yankee and a Lucky 15?
A Yankee drops the four singles, so it is eleven bets: six doubles, four trebles and the fourfold. One winner returns nothing on a Yankee, while a Lucky 15 still pays the single.
How is the place part of an each way bet worked out?
The place half pays the win odds multiplied by the place terms. At 6/1 with one fifth terms the place part is paid at 6/5, so a £10 place stake returns £22.
Does the calculator include my stake in the return?
Yes. Total return is everything paid back, stakes included, and profit is return minus total stake. Free bets usually pay winnings only, so subtract the free bet stake from the return when you use one.
What happens with non-runners and Rule 4?
A non-runner in a multiple is normally treated as a winner at odds of 1.0, and Rule 4 deductions reduce winning odds when a horse is withdrawn late. The calculator does not apply either, so check the bookmaker's settled return for those.
Can I use decimal odds?
Yes. Type fractions such as 11/4, decimals such as 3.75, or the word evens. The odds converter on the right shows the same price in all three forms with the implied chance.
