How much potassium is in brewed coffee?

116 milligrams of potassium in 1 cup (8 fluid ounce)

Potassium in other portions of brewed coffee
PortionPotassium
1 fluid ounce15 milligrams of potassium in 1 fluid ounce
6 fluid ounces87 milligrams of potassium in 6 fluid ounces
100 g49 milligrams of potassium in 100 g

See everything in a serving of Coffee, brewed

Where these numbers come from

USDA FoodData Central, SR Legacy, record 171890. The source describes it as: Beverages, coffee, brewed, prepared with tap water.

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).

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