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Coffee math

How many cups of coffee are in a 8-oz bag?

About 15 cups.

Coffee mathUpdated October 2026Numbers calculated for this page
A 8-oz bag (227 g) makes about 15 8-oz cups at a standard 1:16 ratio. At one 12-oz mug a day it lasts about 10 days.
DrinkServings per bag
8 oz cup (1:16)15
12 oz mug (1:16)10
16 oz mug (1:16)8
8 oz cup, strong (1:15)14
Double espresso (18 g)13
Cold brew concentrate (1:5), servings diluted 1:18

Cold brew servings account for water the grounds soak up. Exact numbers depend on your recipe; a scale keeps it consistent.

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Other bag sizes

Questions people ask

How many cups are in a 8-oz bag of coffee?

About 15 8-oz cups at 1:16.

How long does a 8-oz bag of coffee last?

About 10 days at one 12-oz mug a day, or 5 days at two.

Numbers on this page are estimates calculated from the assumptions shown. Coffees, beans and drinks vary; caffeine figures are typical values, not medical advice.

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