Raffle Percentage Calculator
Your winning chance in a raffle is simply your share of the tickets actually in the draw, yet most raffle tools stop at that single number. This calculator gives you the full picture: your winning chance as a percentage, what percent of the raffle has sold, how many tickets remain, and, if you add the prize, the expected value of the tickets you hold.
Enter a valid number of tickets sold (0 or more).
Enter the total number of tickets (must be above 0).
Enter a valid number of your tickets (0 or more).
Enter a valid prize amount (0 or more), or leave it blank.
The chance assumes one prize and a fair draw where every sold ticket is equally likely to be picked. Unsold tickets are not in the draw and do not dilute your chance.
Quick Answer
With 200 tickets sold out of 500 available and 10 of them yours, your winning chance is 5.00%, the raffle is 40.00% sold, and 300 tickets remain. Add the pre-filled $500 prize and the expected value of your tickets is $25.00. Those are the exact figures the calculator above returns for the pre-filled example.
Key takeaways
- Your chance is your tickets divided by tickets sold, never by tickets printed. Unsold tickets are not in the drum.
- Doubling your tickets exactly doubles your chance in a single-prize raffle: 5 of 200 is 2.50%, 10 of 200 is 5.00%.
- The tool assumes one prize. A second prize drawn from the same drum lifts 5 of 200 from 2.50% to about 4.95% for at least one win.
- Expected value prices your tickets: prize × chance. A $25.00 expected value against a $10 ticket cost is good math; against $50 it is entertainment.
- Quick Answer
- How to use the raffle percentage calculator
- The three formulas behind the results
- Worked example: 10 tickets in a 500-ticket raffle
- Double your tickets, double your chance
- The one-prize assumption, stated plainly
- What competing calculators miss
- Common raffle mistakes
- Expected value: is the ticket worth its price?
- Frequently asked questions
- Add This Calculator to Your Website
- References
How to use the raffle percentage calculator
Enter three counts, add the prize only if you want the money view, and click Calculate. Results stay hidden until you do.
- Tickets sold so far: every ticket actually sold and entered in the draw, including yours. The worked example uses 200.
- Total tickets available: the full print run or capacity of the raffle, 500 in the example. This number never touches your winning chance; it drives the sell-through percentage and the remaining count.
- Your tickets: how many of the sold tickets you hold, 10 in the example.
- Prize amount (optional): add a prize, $500 in the example, and a fourth result appears, the expected value of your holding. Leave it blank and that row stays hidden.
Commas are welcome: 1,200 is read as 1200. Impossible entries are rejected with a note under the field: tickets sold cannot exceed total tickets, your tickets cannot exceed tickets sold, and negatives or non-numbers never calculate. Pressing Enter in any field runs the calculation too.
The three formulas behind the results
One division gives your chance, a second gives the sell-through, and a subtraction counts what is left. Everything on the results panel traces back to these three lines.
Sell-through = (Tickets sold ÷ Total tickets) × 100
Tickets remaining = Total tickets − Tickets sold
Expected value = Prize × (Winning chance ÷ 100)
The chance formula is a plain probability: favorable tickets over tickets in the draw. If you want to move between a probability written as a decimal and the same figure as a percentage, the probability percentage calculator handles that conversion on its own. Expected value is the standard probability-weighted average used across statistics: each outcome multiplied by its probability, summed. Here there are two outcomes, win the prize or win nothing, so the sum collapses to prize × chance.
Worked example: 10 tickets in a 500-ticket raffle
A school fundraiser prints 500 tickets, sells 200 of them, and you bought 10. The prize is $500. Those numbers are pre-filled above, and the calculator returns a 5.00% winning chance, 40.00% sold, 300 remaining and a $25.00 expected value.
Three more runs of the same tool, useful as spot checks:
| Scenario | Sold | Sold % | Your chance | Remaining |
|---|---|---|---|---|
| Sold out, 25 of 1,000 yours | 1,000 of 1,000 | 100.00% | 2.50% | 0 |
| Small church raffle, 3 of 48 sold yours | 48 of 120 | 40.00% | 6.25% | 72 |
| You bought every ticket sold | 200 of 200 | 100.00% | 100.00% | 0 |
One display quirk worth knowing: at very large counts the rounded sell-through can read 100.00% while a ticket or two remain. With 999,999 of 1,000,000 sold the true figure is 99.9999%, which rounds to 100.00% at two decimals, and the remaining count still correctly shows 1.
Double your tickets, double your chance
In a single-prize raffle your chance grows in a straight line with your holding, because every ticket is one equal slice of the draw. There are no volume discounts in probability and no diminishing returns until you own the whole drum.
| Your tickets (of 200 sold) | Winning chance | Read as 1 in N |
|---|---|---|
| 5 tickets | 2.50% | 1 in 40 |
| 10 tickets | 5.00% | 1 in 20 |
| 20 tickets | 10.00% | 1 in 10 |
| 40 tickets | 20.00% | 1 in 5 |
Bar lengths are proportional to the winning chance at 200 tickets sold. To read any percentage as 1 in N, divide 100 by it: 100 ÷ 5 = 1 in 20.
The one-prize assumption, stated plainly
The headline chance is exact for one prize drawn once. It is the honest limit of this tool, and it is worth knowing how the answer moves when a raffle draws several prizes.
With more than one prize, your chance of winning at least one is higher than the single-prize figure, but never as high as simply multiplying by the number of prizes. Holding 5 of 200 tickets with 2 prizes drawn, the exact chance is 1 − (195 ÷ 200) × (194 ÷ 199), which works out to about 4.95%, just under double the 2.50% single-prize answer. Each losing ticket drawn leaves the drum slightly richer in your tickets, which is why the true figure edges toward, but never reaches, the naive double. No holding short of every ticket guarantees a win, however many prizes there are.
What competing calculators miss
Raffle tools cluster into a few types, and each leaves a gap this page was built to close:
- Two-input percentage clones (Brave Calculator, Area Calculators): both divide tickets held by tickets sold and stop there. The division is right, but there is no sell-through figure, no remaining count, no prize or expected value, and no rejection of impossible entries like holding more tickets than were sold.
- Odds-first tools (Mathos, AgentCalc, TheUsefulSite): richer on the probability side, with odds against, 1 in N readings and, on the better ones, genuine multi-prize math. The trade-off is that they frame everything as odds and expect you to already know whether the denominator should be tickets sold or tickets printed, the single most common raffle mistake.
- Generic chances-of-winning tools (CalculatorsHub and similar): favorable outcomes over total outcomes for any event. Flexible, but nothing raffle-specific: no sell-through, no remaining tickets, no sense that unsold tickets sit outside the draw.
- Explainers without a working tool (Our Pastimes and similar guides): the multi-draw explanation is sound, worked by hand through the not-winning fractions, but you still do every division yourself.
- The gap this page fills: chance, sell-through, remaining tickets and expected value in one run, validation that refuses impossible raffles, and the one-prize limit stated on the page instead of buried.
Common raffle mistakes
Three errors account for nearly every wrong raffle percentage quoted at a fundraiser. All three are denominator errors, not arithmetic errors.
- Dividing by tickets printed instead of tickets sold. A raffle prints 1,000 tickets and sells 200. Your 10 tickets are 10 ÷ 200 = 5.00%, not 10 ÷ 1,000 = 1.00%. The 800 unsold tickets cannot be drawn.
- Mixing up probability and odds. A 5.00% probability is 19:1 odds against: 95 losing outcomes for every 5 winning ones, scaled down. "1 in 20" and "19 times out of 20 you lose" are the same fact wearing different clothes. An odds calculator converts between the two forms when you need the bookmaker's version.
- Reading a small percentage as no chance. 2.50% is one draw in forty. School raffles are won by someone holding exactly that kind of ticket every week. The percentage describes the draw, not whether entering is sensible; that judgment belongs to the expected value check below.
Expected value: is the ticket worth its price?
Expected value is the one number that turns a raffle from a feeling into a comparison. It is the long-run average return of your holding if the same draw ran thousands of times.
In the worked example the expected value is $25.00. If your 10 tickets cost $1 each, you paid $10 for a holding worth $25.00 on average, which happens in charity raffles where the prize is donated and ticket sales stay low. If the tickets cost $5 each, you paid $50 for the same $25.00 of mathematical value, a normal fundraiser margin: the organizer's cut is the gap. Neither answer says buy or do not buy. It says what the chance costs, and a gambling return calculator extends the same thinking to stakes and payouts beyond raffles. For organizers, raffles run by tax-exempt groups also carry reporting duties: according to IRS guidance on exempt organization gaming, raffle income is generally unrelated business income unless an exception applies, and larger prizes trigger Form W-2G reporting under the Schedule G rules. This page is informational and is not gambling or tax advice.
Frequently asked questions
Winning chance = (your tickets ÷ tickets sold) × 100. With 10 tickets out of 200 sold: (10 ÷ 200) × 100 = 5.00%. The sell-through percentage is a separate division: (tickets sold ÷ total tickets) × 100.
They answer different questions. Your winning chance uses tickets sold, because only sold tickets are in the draw: 10 ÷ 200 = 5.00%. Total tickets gives the sell-through percentage (200 ÷ 500 = 40.00%) and the tickets remaining (500 - 200 = 300).
The tool shows a 0.00% winning chance rather than an error. With no tickets in the draw there is nothing to win yet, and the tickets remaining count simply equals the total.
Yes, in a single-prize raffle. 5 of 200 is 2.50% and 10 of 200 is exactly 5.00%. Each ticket is an equal slice of the draw, so your chance scales in direct proportion to the tickets you hold.
Divide 100 by the percentage. 5.00% gives 100 ÷ 5 = 1 in 20. 6.25% is 1 in 16 and 2.50% is 1 in 40. It is the same chance in different words.
The tool assumes one winner. Multiple prizes raise your chance of winning at least one prize: holding 5 tickets out of 200 with 2 prizes drawn gives about 4.95%, close to double the 2.50% single-prize figure, because each draw is a fresh chance and losing tickets leave the drum.
It turns your percentage into money. Expected value equals the prize multiplied by your winning chance as a decimal, so a 5.00% chance at a $500 prize is worth $25.00 on average. Compare that with what your tickets cost: pay less than the expected value and the math favors you, pay more and you are paying for the fun.
No. The highest possible result is holding every ticket sold, which gives exactly 100.00%. The calculator rejects a your-tickets entry larger than tickets sold, so an impossible percentage can never appear.
No. Your chance depends only on the tickets actually sold and in the draw. A raffle that has sold half its tickets gives every buyer a better chance than the same raffle sold out, which is why the calculator keeps sold and total as separate inputs.
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References
- Internal Revenue Service. Exempt Organization Gaming and Unrelated Business Taxable Income (raffles classed as gaming; when raffle income becomes unrelated business taxable income). Accessed October 24, 2026.
- Internal Revenue Service. Instructions for Schedule G (Form 990) (fundraising and gaming reporting for exempt organizations, including raffle prize reporting). Accessed October 24, 2026.
- OpenStax, Introductory Statistics, via Statistics LibreTexts. Mean or Expected Value and Standard Deviation (expected value as the long-run probability-weighted average). Accessed October 24, 2026.
- Davis, Kevin, Introduction to Probability and Simulation. Expectation (expected value defined as the probability-weighted average of a random variable). Accessed October 24, 2026.
- OpenStax, via Lumen Learning. Mean or Expected Value and Standard Deviation (expected value, the law of large numbers, and long-term averages). Accessed October 24, 2026.
- OpenStax, Introductory Statistics, via Statistics LibreTexts. Analyzing Discrete Random Variables (probability distributions and expected value as a balance point). Accessed October 24, 2026.