Bet Calculator for UK Bets: Lucky 15, Accumulator, Yankee and Trixie

Pick the bet type and the right number of rows appears. It works as a betting calculator for football, tennis, racing or any other sport, because a price is a price whatever the event. Choose Trixie, Patent or Yankee and it behaves as a trixie calculator, a patent calculator or a yankee calculator; choose Lucky 15 and it is a Lucky 15 calculator; choose Accumulator and it is an acca calculator for anything from 2 to 20 selections.

One limit up front. The calculator settles the arithmetic of the bet. It does not include bookmaker promotions such as a Lucky 15 bonus, accumulator insurance or boosted prices, and it does not settle free bets where the stake is not returned. The reasons are further down the page.

That is why a £10 Yankee costs £110, not £10. Each-way doubles the count again: a Lucky 15 each-way is 30 bets, made of 15 lines times two parts. The calculator shows this line, for example "Lucky 15 each-way = 30 bets, 15 lines × 2", before you enter any result, so the total outlay is never a surprise.

Take a £10 double on two selections at 2/1 and 3/1. The first leg returns £30 (the £10 stake plus £20 profit), and that £30 goes on to the second leg at 3/1, which returns £120. In decimal terms that is 10 × 3 × 4 = 120, a profit of £110. If the second leg loses, the return is £0 and the loss is the £10 stake.

The same logic applies to every longer multiple. Each added leg multiplies the return by that leg's decimal price, which is why the bet calculator needs a result on every row before it settles anything. To convert a fractional price by hand, add 1 to the fraction: 11/4 is 3.75, 4/1 is 5.00 and evens is 2.00.

The example below uses four football selections at 2/1, 5/2, 11/4 and 4/1, with £1 on each of the 15 bets, so £15 is staked in total. Enter the same total stake of £15 with the stake set to total and the calculator splits it into 15 bets of £1, with an identical result.

Compare it with a Yankee on the same four prices at £1 a bet. If all four win, the Yankee returns £496.75 and the Lucky 15 returns £512.00. The difference of £15.25 is exactly the four singles: £3.00, £3.50, £3.75 and £5.00.

Used as a trixie calculator, the page shows what the extra Patent singles are worth. At £10 a bet on 2/1, 3/1 and evens, a Trixie costs £40 and returns £500.00 if all three win; the Patent costs £70 and returns £590.00. With two winners (2/1 and 3/1) the Trixie returns £120.00 and the Patent £190.00. With only the 2/1 winner the Trixie returns nothing, while the Patent returns £30.00 from its single.

Run the same prices through the patent calculator and the Trixie option and the gap is always the singles. That is the whole trade: pay for 3 more bets and a lone winner is no longer a total loss, though it is still a loss at those stakes.

Take a £10 treble at 2/1, 3/1 and evens where the 3/1 leg is void and the others win. The result is 10 × 3 × 1 × 2, the same as £10 on a double at 2/1 and evens, and it returns £60.00 with a £50.00 profit. If every leg is void, the bet returns the £10 stake and the profit is £0.00.

In a full-cover bet the number of bets stays the same, because a void leg does not remove a line. In a Lucky 15 where the 2/1 selection wins, the 5/2 selection is void and the other two lose, the return is £7.00 on £15 staked: the winning single (£3.00), the void single (£1.00 back) and the double of the two (£3.00).

The number of bets doubles, so a £10 each-way double costs £20. Take a double on a 3/1 selection with 1/4 terms and a 2/1 selection with 1/5 terms. If the 3/1 selection wins and the 2/1 selection only places, the win part pays nothing, since one leg did not win. The place part pays 10 × (1 + 3 × 1/4) × (1 + 2 × 1/5) = £24.50, a profit of £4.50 on the £20 staked.

Each leg carries its own place terms, so the calculator asks for them row by row. Stake mode matters too: £20 as the total stake on that double is the same bet as £10 per bet, because the total is split across the two parts.

Enter the pence deduction on the row: 25 for 25p in the £. A £10 double on 3/1 and 2/1 with a 25p Rule 4 on the 2/1 selection returns £100.00 instead of £120.00, because the 2/1 profit of £2 per £1 staked is cut to £1.50 before it rolls on. Dead heats work the same way: if the 4/1 selection is in a two-way dead heat for the win, half the stake is settled at 5.00, so that £10 double on 4/1 and 3/1 returns £100.00. The same dead heat in a £10 single returns £25.00.

Free bets are left out for the same reason: a free bet usually does not return its stake, so a normal win calculation would be wrong by the stake. If you use an offer, read its terms and treat the calculator's figures as the settlement without the offer.

A betting calculator is most useful for the question a slip cannot answer before the event: what comes back for each result? Use it before you place the bet to see the cost, which is the number of bets times the stake, and afterwards to check the settlement. If a bookmaker's settlement differs, the likely causes are an offer, a Rule 4 deduction that was not entered, or different place terms.

Bookmaker margin compounds in the same way. Suppose each price carries a 5% margin, meaning it pays about 4.8% less than a fair price. Over one leg that is a loss of 4.8% against the fair return. Across four legs the fair return is multiplied by 0.9524 four times, which leaves 82.3% of it, so about 17.7% is lost.

This is arithmetic, not a view on any bet. An acca calculator cannot tell you whether the selections are good, and a single accumulator needs every leg to win. The figures on this page show what a given set of prices pays, nothing more.

If JavaScript is switched off, the page shows a table of how many bets each type contains instead of the working calculator. For gambling support, see our responsible gambling page; you must be 18 or over to bet in the UK.