The short answer
If a draw sells four million entries and you hold forty, your odds are about 1 in 100,000 for that draw. That is far better than the National Lottery jackpot, and far worse than “likely”. Omaze does not always publish the total entry count, so treat every odds figure as an educated estimate rather than a promise.
What changes your odds
- How many entries sell. The single biggest factor, and the one you can’t control. Popular houses in desirable areas attract more entries, lengthening the odds.
- How many entries you hold. The factor you do control. Odds improve proportionally with entries — but from a very long base.
- Multiple draws. Entering several different draws spreads your chances across prizes; it does not improve your odds in any single draw.
How Omaze odds compare
| Draw | Rough odds of the top prize | Notes |
|---|---|---|
| National Lottery (Lotto jackpot) | ~1 in 45 million | Per line, published |
| EuroMillions jackpot | ~1 in 139 million | Per line, published |
| Omaze house (popular draw) | often ~1 in millions per entry | Estimate — depends on entries sold |
Figures indicative, as of July 2026. Omaze odds are estimates because entry totals are not always published.
Where the numbers come from
We estimate total entries from published subscriber or revenue figures and the bundle prices, and we say which we used on the calculator. If Omaze publishes an entry count for a specific draw, we use that instead. When we can’t stand behind a number, we say “Omaze does not publish this” — that honesty is the point of this guide.
The sensible way to think about it
Buying entries improves your odds, but never enough to make winning likely. Enter an amount you would be happy to spend on a night out, enjoy the anticipation, and know that the guaranteed charity donation happens whether or not you win. If your real aim is to help the charity, a direct donation does far more — see our comparison.