Lotteries

Astro (Loto-Québec) Odds and Prizes

Astro loto Québec in numbers: how a date and a star sign form one selection, the odds of every prize and how much of each dollar comes back on average.

Top prize (4/4)1 in 446,4000.00022% chance, one $1 play
Any prize1 in 5.1✓ as published at least one win: 1 in 5.1
Fixed prizes pay back43.7%$0.44 of every $1, on average. every prize counted; a free play counted as a new play. The operator publishes 43.72%

Out of 100,000 plays, about 19,496 win a prize (18,134 of them a free play). The top prize: about one winner in every 4 such crowds of 100,000.

1/4: 18,1342/4: 1,3283/4: 33.84/4: 0.22

MatchPrizeOddsPer 100,000
4/4$25,0001 in 446,4000.00022% ✓ as published0.22
3/4$5001 in 2,9560.034% ✓ as published33.8
2/4$101 in 75.31.33% ✓ as published1,328
1/4Free play1 in 5.518.1% ✓ as published18,134
How it is calculated

Source: Loto-Québec game conditions checked Oct 29, 2026 · Loto-Québec page checked Oct 29, 2026

Odds of every Canadian lottery →

Woman holding a star globe

Every Astro prize

MatchPrizeOdds
4 of 4Top fixed cash prize1 in 446,400
3 of 4Fixed cash prize1 in 2,956
2 of 4Fixed cash prize1 in 75.3
1 of 4Free selection1 in 5.51
Any prizeAny of the above1 in 5.13

Prize amounts are fixed and listed in Loto-Québec's rules. The total paid in one prize category is capped per draw.

How the ticket is built

One selection

Each selection is a day (1 to 31), a month (1 of 12), a year (00 to 99) and a sign (1 of 12).

Day

Any day of the month from the official range.

Month

Any month from January to December.

Year

The last two digits of a year.

Sign

Any star sign from Aries to Pisces.

Price

$1

Cost of one selection. Draws take place every evening.

How a draw is checked

  1. A combination is drawnLoto-Québec draws a day, a month, a year and a sign.
  2. Each part is comparedYour day is compared with the drawn day, your month with the drawn month, and so on.
  3. Matches are countedThe prize depends on how many of the four parts match: from 1 of 4 to 4 of 4.

Return per dollar

Return = sum of (prize × chance of that prize) ÷ price; the free selection counts as one more selection

Example: For example, a $1 selection pays back 43.7% of its price on average over many draws. The rest is the expected loss.

Other Québec games

La Mini

A six-digit number game with fixed prizes and its own odds table.

All Québec lotteries

Games, odds and minimum age rules for Québec in one place.

Sources

Questions

How does Astro work?

Each selection is a day (1 to 31), a month (1 of 12), a year (00 to 99) and a sign (1 of 12). A selection costs $1. Loto-Québec draws a combination every evening, and the prize depends on how many of the four parts match.

What are the odds of winning Astro?

The odds of any prize are 1 in 5.13. The top prize for 4 of 4 has odds of 1 in 446,400. Most winning selections match 1 of 4 and get a free selection.

Does your star sign matter in Astro?

No. The sign is drawn separately from the date, and every sign has the same chance. A selection with your own sign has exactly the same odds as any other.

How much of each dollar does Astro pay back?

On average 43.7% of the price, counting the free selection as one more selection. The rest of each dollar is the expected loss over many draws.