Lucky 15 Calculator – How Does It Work?

Oddsmart’s Lucky 15 Calculator automates the maths behind this 15-bet multiple—so you can cover all singles, doubles, trebles and the four-fold without spreadsheets or errors.

What Is a Lucky 15?
A Lucky 15 places 15 bets on four selections (4 singles, 6 doubles, 4 trebles, 1 accumulator). With a unit stake of £1, win-only costs £15; each-way doubles that to £30.

Why Use Oddsmart’s Calculator?

Full Coverage: Computes all 15 (or 30) bets instantly.

Odds Flexibility: Enter decimal, fractional or American odds.

Rule 4 & Dead-Heat Handling: Automatically applies pence-in-the-pound deductions and splits stakes on ties.

Each-Way Splits & Bonuses: Toggle each-way mode, set place terms (¼, ⅕, etc.), and define bookmaker bonuses (all-winner, one-loser, one-winner).

Real-Time Totals: See Total Stake, Return and Profit update as you tweak inputs.

How to Use

Unit Stake & Mode: Choose win-only or each-way and enter per-bet stake.

Odds & Selections: Input odds for your four picks in any format.

Adjustments: Select place fraction and any Rule 4 rate.

Results: The calculator breaks down returns by singles, doubles, trebles, accumulator and applies bonuses, displaying your overall profit or loss.

With Oddsmart’s Lucky 15 Calculator, you’ll know your worst- and best-case outcomes before you bet—maximising matched-betting profits while eliminating manual errors. Try it today and bet smarter!