Bet calculator
Choose a bet type, enter each selection's odds in any format and mark whether it won, placed, lost or was void. The calculator works out the number of bets, total stake and returns.
Written by BettingSeeker Editorial Team
How full-cover bets work
A full-cover bet combines a fixed number of selections into every possible double, treble and accumulator. Some types add a single on each selection too. A Yankee on four selections is 6 doubles, 4 trebles and 1 four-fold: 11 bets. A Lucky 15 is the same plus 4 singles. Because there are several lines, you can get a return without every selection winning, but each line is a separate bet with its own stake.
With each-way switched on, every line becomes two bets: a win line using the full odds and a place line using the place odds. A selection that places but does not win counts as a loser in the win lines and a winner in the place lines.
Worked example
A 1 Yankee (11 bets, 11 in total) on four selections at 2/1, 5/2, evens and 3/1, where the third selection loses:
- Only lines without the losing selection pay: the double 2/1 × 5/2 (3.00 × 3.50 = 10.50), the double 2/1 × 3/1 (12.00), the double 5/2 × 3/1 (14.00) and the treble of all three (42.00)
- Returns: 10.50 + 12.00 + 14.00 + 42.00 = 78.50
- Profit: 78.50 − 11 = 67.50
The formula
For each line, returns = stake × the product of the decimal odds of its selections, where a loser counts as 0 and a void as 1.00. Each-way place lines use place odds = 1 + (odds − 1) × place fraction. Total returns are the sum of every line; total stake = stake per bet × number of bets (× 2 for each-way).
Frequently asked questions
How many bets are in a Yankee, Lucky 15 or Goliath?
A Trixie is 4 bets, a Patent 7, a Yankee 11, a Lucky 15 is 15, a Canadian (Super Yankee) 26, a Lucky 31 is 31, a Heinz 57, a Lucky 63 is 63, a Super Heinz 120 and a Goliath 247. Your total stake is the stake per bet multiplied by the number of bets, and doubled if you bet each-way.
What happens to a non-runner or void selection?
A void selection is treated as odds of 1.00. Singles on it are refunded, and any double, treble or accumulator that includes it is settled on the remaining selections, so a double with one void leg becomes a single.
Does the calculator include Lucky 15 bonuses?
No. Many bookmakers pay extra on Lucky 15, 31 and 63 bets, such as double or treble odds when only one selection wins, or a bonus when all win. These offers vary by bookmaker, so the calculator shows standard returns only. Check the bookmaker's rules for any bonus on top.
Are full-cover bets better value than singles?
Not in itself. A full-cover bet is a bundle of singles, doubles, trebles and accumulators, and the bookmaker margin applies to every line and compounds in the multiples. They spread the outcome across more results, but they cost more and do not change the odds in your favour.