How much potassium is in raw tomato?

427 milligrams of potassium in 1 cup, chopped or sliced

Potassium in other portions of raw tomato
Portion	Potassium
1 cup cherry tomatoes	353 milligrams of potassium in 1 cup cherry tomatoes
1 cherry	40 milligrams of potassium in 1 cherry
1 slice, medium (1/4 inch thick)	47 milligrams of potassium in 1 slice, medium (1/4 inch thick)
1 plum tomato	147 milligrams of potassium in 1 plum tomato
1 slice, thick/large (1/2 inch thick)	64 milligrams of potassium in 1 slice, thick/large (1/2 inch thick)
1 wedge (1/4 of medium tomato)	73 milligrams of potassium in 1 wedge (1/4 of medium tomato)
1 slice, thin/small	36 milligrams of potassium in 1 slice, thin/small
1 serving	351 milligrams of potassium in 1 serving
100 g	237 milligrams of potassium in 100 g

See everything in a serving of Tomato, raw

Where these numbers come from

USDA FoodData Central, SR Legacy, record 170457. The source describes it as: Tomatoes, red, ripe, raw, year round average.

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).