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We regularly review UK competition sites and highlight - The best value raffles, Legitimate Raffle Sites and Sites with the best odds!
Raffle Calculator
Calculate your real chances of winning UK competitions and raffles. Instantly see your odds, expected value, and whether a raffle is actually worth entering.
Free UK raffle odds tool • No sign-up required
DISCLAIMER
This raffle calculator provides estimated probabilities based on the information you enter. It does not increase your chances of winning. UK competitions and raffles are forms of gambling, and outcomes are always random. Only enter competitions you can afford and always gamble responsibly.
UK Raffle Tool
by LegitRaffles.co.uk
RaffleSense
The free UK raffle calculator — work out your real odds and whether a raffle is worth entering before you spend a penny.
Step 01
Raffle Details
£
Ticket Sales
Step 02
Prize Structure
Add each prize tier. For a single prize, fill in one row. For multiple prizes of different values, add a row for each tier.
Your results will appear here
Fill in the raffle details above and hit Calculate to see your full odds breakdown and Raffle Score.
Step 01
Raffle Details
£
Step 02
Set Your Target Win Chance
%
£
We'll flag if cost exceeds this
Set your target win chance
Enter the raffle details and your desired win probability above — we'll work out exactly how many tickets you need and what it'll cost.
✓ Result copied to clipboard!
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How This Raffle Odds Calculator Works
Our raffle calculator uses simple probability to estimate your chances of winning based on:
- Total number of tickets available
- Number of tickets sold
- How many tickets you plan to buy
- Prize structure (single or multiple prizes)
Once you enter the details, the calculator works out:
- Your true odds of winning
- The expected value of your entry
- Whether the raffle offers good or poor value
This helps you avoid entering competitions blindly and gives you a clearer picture before spending money.
What is A Good Raffle Payout Ratio?
A raffle payout ratio shows how much of the total ticket revenue is returned as prizes.
For example:
- If a raffle sells £10,000 worth of tickets
- And the prize is worth £7,000
- The payout ratio is 70%
General guidelines:
- 80%+ → Excellent value
- 60–80% → Fair value
- Below 60% → Poor value
Most UK competition sites operate between 50% and 75%, meaning the house always has an edge.
👉 This is why understanding payout ratio is crucial before entering.
What Are My Chances of Winning a Raffle?
Your odds depend on two things:
- Total tickets available
- How many you own
If:
- There are 10,000 tickets
- You buy 10
Your odds are:
👉 10 in 10,000 (0.1%)
Even though competition sites often market “low ticket numbers”, your actual probability is usually very small.
This calculator removes the guesswork and shows your real chances instantly.
FAQ'S
How Accurate Is this Raffle Calculator?
The calculator uses standard probability formulas based on the information you enter. Results are estimates and assume all tickets are sold and drawn fairly.
Does it Work For UK Competition Sites?
Yes. This tool is designed specifically for UK-style competitions and raffles, including sites that use skill-based questions.
Does buying more tickets guarantee a win?
No. Buying more tickets increases your chances, but there is never a guarantee of winning.
What is expected value in raffles?
Expected value is the average return you would get over time. Most raffles have a negative expected value, meaning you are statistically likely to lose money.