The short answer: A regular marshmallow weighs about 7 to 10 grams (0.25 to 0.35 ounces), since it is mostly sugar foam and very light for its size.
Marshmallow weight by type
Marshmallows are airy, so they weigh little for their volume. Here are common sizes.
| Type (example) | Typical weight |
|---|---|
| Mini marshmallow | About 0.5-1 g (0.02-0.04 oz) |
| Regular marshmallow | About 7-10 g (0.25-0.35 oz) |
| Jumbo marshmallow | About 12-15 g (0.42-0.53 oz) |
| Campfire/roasting marshmallow | About 10-13 g (0.35-0.46 oz) |
| Flavored/coated marshmallow | About 8-12 g (0.28-0.42 oz) |
What affects marshmallow weight
- Size. Mini, regular, and jumbo marshmallows differ greatly.
- Air content. Marshmallows are whipped full of air, keeping them light.
- Density. Firmer marshmallows weigh slightly more than very fluffy ones.
- Coatings. Sugar, cocoa, or chocolate coatings add a little weight.
- Moisture. Fresh, soft marshmallows hold more moisture than stale ones.
- Brand. Each brand whips its marshmallows to a target weight.
How marshmallow weight compares
A regular marshmallow weighs about the same as two paperclips or a single grape.
Frequently asked questions
How much does a regular marshmallow weigh?
A standard-size marshmallow weighs about 7 to 10 grams (0.25 to 0.35 ounces).
How much does a mini marshmallow weigh?
A mini marshmallow weighs roughly half a gram to one gram. It takes many to add up to a regular marshmallow.
Why are marshmallows so light?
Marshmallows are whipped full of air, so a large piece weighs very little despite its size.
