What is the substitution ratio for mini marshmallows to large marshmallows?

Question

I have a recipe calling for 12 large marshmallows, but I only have minis. How many should I use?

Answer 1

Kraft's Jet-Puffed brand claims the following conversion factor:

1 Regular Marshmallow = 13 Mini Marshmallows

That puts you at around 156 Mini Marshmallows for 12 Regulars.

Answer 2

This nutrition data says that:

• 1 cup of miniature marshmallows weighs 50 grams,
• 10 miniature marshmallows weigh 7 grams, and
• 1 regular marshmallow weighs 7 grams

1:10 is a bit different from Sam Ley's answer; maybe Kraft is a little off average or this data is a little off. In any case, it's helpful in that it'd let you measure: 12 large ("regular") would be 84 grams, which is almost exactly 1 2/3 cups.