Tomato Sauce vs Ketchup

A side-by-side guide to substituting Ketchup for Tomato Sauce (or vice versa).

Quick answer

Use 0.75 cup of Ketchup for every 1 cup of Tomato Sauce.

Side-by-side

Tomato Sauce

Base unit: cup

Read the full guide: Tomato Sauce

Ketchup

Conversion: Use 75% as much (0.75 cup per 1 cup)

Tags: budget

Notes: Ketchup is sweeter and more concentrated than tomato sauce. Use about ¾ cup and reduce added sugar in the recipe; works best where sweetness is acceptable.

Read the full guide: Ketchup

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When to use Ketchup instead of Tomato Sauce

Ketchup is sweeter and more concentrated than tomato sauce. Use about ¾ cup and reduce added sugar in the recipe; works best where sweetness is acceptable. The conversion is use 75% as much (0.75 cup per 1 cup).

Common questions

Can I substitute Ketchup for Tomato Sauce?

Yes — Ketchup is sweeter and more concentrated than tomato sauce. Use about ¾ cup and reduce added sugar in the recipe; works best where sweetness is acceptable. Ratio: Use 75% as much (0.75 cup per 1 cup).

What's the conversion ratio for Tomato Sauce to Ketchup?

Use 75% as much (0.75 cup per 1 cup). For other quantities, use the SubSwap calculator.

Are Tomato Sauce and Ketchup interchangeable?

They are similar in most uses, but Ketchup is sweeter and more concentrated than tomato sauce..

Is Ketchup a better substitute than other options for Tomato Sauce?

Ketchup is one of the options SubSwap lists for Tomato Sauce. The 'best' choice depends on your recipe — see the full list of Tomato Sauce substitutes.

Looking for more Tomato Sauce substitutes beyond Ketchup?

See all Tomato Sauce swaps →