William Hill Bet Calculator Lucky 15

William Hill's Lucky 15 is a popular lottery game where players select 15 numbers from 1 to 30. This calculator helps you determine your potential winnings, understand the odds, and calculate expected returns based on your bet size and number of lines played.

How William Hill Lucky 15 Works

Lucky 15 is a daily lottery game where players choose 15 numbers from a pool of 30. The game draws 15 winning numbers, and players win prizes based on how many of their selected numbers match the drawn numbers.

Key Details: The game is played daily, with a fixed jackpot that grows until it's won. Players can choose to play 1, 2, or 3 lines per bet.

Prize Structure

The prize structure varies, but typically includes:

Matching 15 numbers: Jackpot prize
Matching 14 numbers: Second prize
Matching 13 numbers: Third prize
Matching 12 numbers: Fourth prize
Matching 11 numbers: Fifth prize

Game Mechanics

The game uses a random number generator to select the winning numbers. Each day's draw is independent of previous draws, providing fair odds for all players.

Odds and Combinations

Understanding the odds is crucial when playing lottery games. For Lucky 15, the odds of winning depend on how many numbers you match with the drawn numbers.

Combination Formula: The number of possible combinations is calculated using the combination formula: C(n, k) = n! / (k!(n-k)!)

For Lucky 15, where you select 15 numbers from 30, the number of possible combinations is C(30, 15).

Winning Odds

The odds of winning any specific prize depend on how many numbers you match. The table below shows the odds for different match counts:

Numbers Matched	Odds (1 in X)
15	1 in 15,504,752
14	1 in 1,086,363
13	1 in 61,878
12	1 in 2,740
11	1 in 120

These odds are based on the assumption that you're playing a single line. If you play multiple lines, your overall odds improve proportionally.

Expected Returns

Expected return (or expected value) is a statistical measure that helps you understand the average outcome you can expect from playing the game over time.

Expected Return Formula: Expected Return = (Probability of Winning × Prize Amount) - (Cost of Bet)

For example, if you play a single line for £2 and the expected return is negative, it means you're expected to lose money in the long run. However, lottery games are designed to be entertaining rather than profitable.

House Edge

The house edge represents the advantage the lottery operator has over players. For Lucky 15, the house edge is typically very high, meaning the game is designed to be unfavorable to players in the long term.

Frequently Asked Questions

How much does it cost to play William Hill Lucky 15?

Each line costs £2. You can play 1, 2, or 3 lines per bet.

What are the odds of winning the jackpot?

The odds of winning the jackpot (matching all 15 numbers) are 1 in 15,504,752.

How often does the jackpot roll over?

The jackpot rolls over until it's won, with a minimum guaranteed amount.

Can I play Lucky 15 online?

Yes, you can play Lucky 15 online through the William Hill website or mobile app.

What happens if I match fewer than 11 numbers?

Matching fewer than 11 numbers typically results in no prize being won.