There are 286 peanut M&M’s in a quart-size mason jar—we counted! You need to know the number of M&M candies if you’re trying to win the Guess How Many game, right? We got you!

Everybody loves this game!
Note that we used peanut, not plain M&M candies. And we used a classic glass mason jar.
Mason Jar Sizes
You need to know the size of the jar too; if it’s not a quart-sized jar then you’ll have to do some calculating:
- A pint-size jar is 1/2 of a quart, so 286 / 2= 143
- There are two quarts in a half gallon, so 286 x 2 = 572
- There are four quarts in a gallon, so 286 x 4 = 1,144
There will always be some variation depending on how high the jar is filled, but this ought to get you pretty darn close to the answer!
Are they describing the jar in terms of ounces? Here are some conversions for you:
- A pint size jar is also a 16 ounce jar
- A quart size jar is also a 32 ounce jar
- A half gallon size jar is a 64 ounce jar
- A gallon size jar is a 128 ounce jar
These size references for jars are fluid ounces!
More about ounces
- ‘oz.’ is the abbreviation for ‘ounce’!

Let’s Play Guess How Many In The Mason Jar!
Want to play Guess How Many In The Jar at your next party?
Grab a quart sized mason jar, a 64 oz bag or larger of peanut M&Ms or your favorite candy then head on over to Skip to my Lou for step by step instructions plus the awesome free printable signs and cards for the Guess How Many In The Jar Game you see in these photos!
More How Many Candies Fit In a Mason Jar Counts:
- How Many M&Ms in a Mason Jar?
- How Many Cheerios in a Mason Jar?
- How Many Jelly Beans in a Mason Jar?
- How Many Gummy Bears in a Mason Jar?
- How Many Beans Can Fit In A Mason Jar?
- How Many Candy Corns in a Mason Jar?
- How Many Peanuts in a Mason Jar?
- How Many Peanut M&Ms fit in a Mason Jar?
Tell us—what did you guess, and how close were you?
I would love to keep you fully stocked with creative ideas, yummy recipes, fun crafts, and loads of free printables. Subscribe to Skip to my Lou to get new ideas delivered to your inbox. Follow me on Facebook, Pinterest, Twitter, and Instagram for all my latest updates.











