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Mega Millions Calculators, Odds & Rules

Every Mega Millions tool in one place — winnings and tax estimates, cash vs annuity comparison, odds by prize tier, and a random number generator — built on the verified game rules below, each with a recorded verification date.

How Mega Millions works

Numbers
5 white balls from 1–70 + Mega Ball from 1–24
Ticket price
$5 per play (multiplier included)
Drawings
Tuesday, Friday — 11:00 p.m. ET
Jackpot odds
1 in 290,472,336
Any-prize odds
1 in 23
Payout options
30 annual payments growing 5%/yr, or lump-sum cash

Rules verified 2026-09-28 against the official Mega Millions rules. The Mega Millions annuity is paid as one immediate payment followed by 29 annual payments, each 5% bigger than the previous one. For the tax side of a win, see how lottery taxes work by state.

Frequently Asked Questions

How does Mega Millions work?

Each $5 play picks 5 white balls from 1–70 and one Mega Ball from 1–24. Drawings are held Tuesday and Friday at 11:00 p.m. ET. Match all six to win the jackpot; nine prize tiers pay from $10 up to the jackpot.

What are the odds of winning the Mega Millions jackpot?

1 in 290,472,336 — the number of distinct combinations of 5 numbers from 70 plus one Mega Ball from 24. The overall odds of winning any prize are 1 in 23. The Mega Millions Odds Calculator shows every tier.

How does the Mega Millions annuity work?

The Mega Millions annuity is paid as one immediate payment followed by 29 annual payments, each 5% larger than the previous one, with the nominal total equal to the advertised jackpot. Winners may instead take a one-time lump-sum cash payment. The Mega Millions Payout Calculator compares both with estimated taxes.

How much tax is taken from Mega Millions winnings?

Winnings are taxed as ordinary income: federal brackets up to 37% plus your state's tax on lottery winnings (California exempts lottery winnings; several states have no income tax). Federal withholding of 24% applies to winnings over $5,000 but is only a prepayment. Use the Mega Millions Tax Calculator for an estimate.

What is the Mega Millions Multiplier?

One of five multipliers (2X, 3X, 4X, 5X, 10X) is randomly assigned at purchase and applies to all non-jackpot prizes — it is included in the $5 ticket price at no extra cost. It does not apply to the jackpot.

Sources & References

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