Calculateur de Probabilités de Loterie

Calculez les chances de jackpot et les probabilités par rang de gain pour Powerball, Mega Millions et formats personnalisés

Game Format

Total numbers drawn from (e.g., 69 in Powerball)

Separate bonus pool (e.g., 26 for the Powerball); 0 for none

Winning Odds Results

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Choose a lottery or enter a custom format

Select a preset above or set your own pool sizes

Lottery Odds Calculator FAQ

What are the odds of winning the Powerball jackpot?

The jackpot odds are 1 in 292,201,338. That is C(69,5) = 11,238,513 main combinations multiplied by the 26 possible Powerballs. This calculator reproduces the official published odds exactly.

How are lottery odds calculated?

Jackpot odds come from the combination formula C(n,k) — how many ways k numbers can be drawn from a pool of n. Each ticket covers exactly one combination, so your chance is 1 in C(n,k), multiplied by the bonus pool when the game has one (e.g., × 26 for Powerball).

Which lottery has the best odds?

Among big jackpots, EuroMillions (1 in 139,838,160) beats Mega Millions (1 in 302,575,350) and Powerball (1 in 292,201,338). Smaller regional games (like 6/49 at 1 in 13,983,816) offer far better odds but smaller prizes.

Does buying more tickets improve my odds?

Yes, linearly: 10 different tickets give 10× the chance, but even 100 tickets in Powerball is still just 1 in 2,922,013. Odds of any prize (including small ones) are far better than jackpot odds — the calculator shows every tier.

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