Canned tomatoes substitute

Sauces, wine and pantry liquids · Checked against 2 sources · Updated November 4, 2026

Quick answer

For 1 cup of canned tomatoes, use 1 and a third cups of diced fresh tomatoes, simmered 10 minutes. Fresh tomatoes hold more water, so the simmering reduces it. Use ripe tomatoes. Winter tomatoes taste flat, and canned ones will taste better.

How much do you need?

Fractions work: 1 1/2, ¾, 0.5. The amounts below update as you type.

What to use

  1. Fresh diced tomatoes, simmered

    • Vegan
    • Dairy-free
    • Gluten-free
    • Nut-free
    • Egg-free
    • 1 ⅓ cups 315 ml diced fresh tomatoes
    How
    Simmer 10 minutes.
    Best for
    Sauces, soups and stews.
    What changes
    Fresher but thinner than canned.
    Skip it when
    Off-season tomatoes.

Diet labels describe the ingredients as normally made. Check packages for gluten and allergens. Some refined sugar is filtered with bone char, which matters if you eat vegan.

Which swap for which job

UsePickWhy
SaucesFresh, simmeredReduces the water.

Questions

How many fresh tomatoes is a 16 oz can?

About 2 cups chopped.

Sources

Ratios come from these sources, in our words. Where they disagree, we say so or pick the amount that matches tested results. Ratios are a starting point. Taste and adjust.