How the coffee bean cost calculator works
Cost per cup comes from two numbers: how much you pay for a bag and how many cups that bag makes. Divide the bag weight by the coffee you use per cup to get cups per bag, then divide the bag price by that to get cost per cup. Multiply by the cups you drink to see daily, monthly, and yearly spend.
What a cup of home coffee really costs
Most specialty bags hold 250 to 340 grams (about 9 to 12 ounces). At a typical 15 gram dose, a 340 gram bag makes roughly 22 cups, so a 15 dollar bag lands near 68 cents a cup. That is far below cafe prices, which is why brewing at home pays for itself quickly.
How to lower your cost per cup
Buy larger bags, use a slightly smaller dose, and store beans airtight so none go to waste. Whole beans stay fresh longer than pre-ground. Trimming your dose from 18 grams to 15 grams cuts cost per cup by about a sixth with little change in strength for most brews.
Bag sizes and doses at a glance
At a 15 gram dose: a 250 g bag makes about 16 cups, a 340 g (12 oz) bag about 22 cups, a 454 g (1 lb) bag about 30 cups, and a 1 kg bag about 66 cups. A lighter 12 gram dose stretches each bag by about a quarter; a heavier 20 gram dose shortens it by about a quarter.
Frequently asked questions
Does grind size change the cost? No. Grind affects flavor and brew method, not how many grams are in the bag. Cost per cup depends only on bag price, bag weight, and your dose.
How many grams are in a scoop? A level tablespoon of ground coffee is roughly 5 grams, so a 15 gram dose is about three tablespoons. A standard coffee scoop holds about 10 grams.
Is home coffee cheaper than a cafe? Almost always. Even premium beans rarely pass one dollar a cup at home, while cafe coffee usually runs three to six dollars.
Related coffee calculators: Coffee to Water Ratio, Cold Brew, Pour Over, French Press, Coffee Batch.