How much potassium is in 1 cup of canned tomatoes?

458 milligrams of potassium in 1 cup

Typical value: brands differ, so check the label. Check a label

Potassium in other portions of canned tomatoes
Portion	Potassium
1 tablespoon	29 milligrams of potassium in 1 tablespoon
1 can	363 milligrams of potassium in 1 can
1 large	313 milligrams of potassium in 1 large
1 medium	212 milligrams of potassium in 1 medium
1 small	157 milligrams of potassium in 1 small
100 g	191 milligrams of potassium in 100 g

See everything in a serving of Tomatoes, canned, in juice

Where these numbers come from

USDA FoodData Central, SR Legacy, record 170051. The source describes it as: Tomatoes, red, ripe, canned, packed in tomato juice.

U.S. Department of Agriculture, Agricultural Research Service, Beltsville Human Nutrition Research Center. FoodData Central. [Internet]. [cited 11 October 2026]. Available from https://fdc.nal.usda.gov/. Releases used: Foundation Foods, April 2026; SR Legacy, April 2018; Survey Foods (FNDDS 2021-2023), October 2024.

Data built on 11 October 2026 (data-2026-10-11).