A 28 oz can of tomatoes weighs 28 ounces net , which is about 1 lb 12 oz or 794 grams. For whole or crushed tomatoes, that usually comes out to roughly 3 to 3.5 cups depending on how packed or drained they are.

Quick conversion

  • 28 oz = 1 lb 12 oz
  • 28 oz ≈ 794 g
  • Whole tomatoes in a 28 oz can: about 10 to 12 tomatoes or about 2 pounds of tomatoes

If you meant volume

A 28 oz can of tomatoes is often about 3 cups undrained for whole tomatoes, and some sources list about 3 1/2 cups for crushed or whole peeled tomatoes.

Handy note

Different tomato types vary a bit, so the exact cup amount can change with the style of tomato and how much liquid is in the can.