Lucky 15 calculator.

A Lucky 15 is a single wager made of 15 bets across four selections: four singles, six doubles, four trebles and one fourfold. Because it includes the singles, just one winner already returns something, which makes it more forgiving than a straight accumulator. It is a staple of UK and Irish racing.

Fifteen, hence the name. They are four singles, six doubles, four trebles and one fourfold accumulator, covering every possible combination of your four selections. Your stake goes on each of the 15 lines, so the total cost is 15 times your stake per line.

Fifteen times your stake per line. A 1 per line Lucky 15 costs 15, and a 2 per line costs 30. Betting each-way doubles it again, since you place 15 win and 15 place bets, so a 1 each-way Lucky 15 costs 30. Always check the total outlay before confirming.

Not always. A single winner only returns your stake if its price is long enough. With the double-odds bonus you need odds around 8.0 (7/1) or bigger to break even on a 15 outlay; without it, around 15.0. A short-priced lone winner returns less than you staked, so one winner does not guarantee your money back.

Two common ones. A one-winner bonus pays your single at double the odds if only one selection wins, and an all-winner bonus adds a percentage, often 10%, to your return if all four win. The exact terms vary by bookmaker, so the calculator lets you set both to match yours.

A Yankee uses the same four selections but leaves out the four singles, so it has 11 bets and needs at least two winners to return anything. A Lucky 15 adds those four singles, giving 15 bets and a return from just one winner, plus the bonuses. The Lucky 15 costs more but is more forgiving.

Yes, and it is very popular in racing. An each-way Lucky 15 is two Lucky 15s, one for the win and one for the place, so it has 30 bets and costs double. Each selection only needs to place for its each-way lines to pay, using your bookmaker’s place fraction such as a fifth or a quarter of the odds.

Usually at least two, and often more at short prices. One winner rarely covers the 15-line cost unless it is a long shot. Two or three winners at fair odds typically turn a profit, and all four, with the bonus, is where the big returns come. Use the calculator with your prices to see exactly where you break even.

They are the bigger members of the Lucky family. A Lucky 31 is five selections across 31 bets, and a Lucky 63 is six selections across 63 bets, both including their singles and the same style of bonuses. More selections mean more lines, more cost and larger potential returns, with the same forgiving structure.

It can be a fun, forgiving way to back four selections, with bonuses that add real value when they land. But it is 15 bets, so it costs more than it looks, and it needs multiple winners to profit. It suits punters who want coverage and the chance of a big all-winner return, rather than the best pure value.

A spread of mid-range prices usually works best. Four short favourites barely clear the 15-line cost even if they all win, while four long shots rarely produce the multiple winners you need. A blend, with one or two bigger prices, gives the doubles and trebles weight and makes the bonuses meaningful.

Yes. Although it is most associated with horse racing, you can build a Lucky 15 from any four selections, such as four match results or four over/under lines. The 15-bet structure of singles, doubles, trebles and a fourfold, plus the bonuses, works the same way whatever the sport.