Calculators

Cost Per Cup Calculator

Bean cost per cup

$0.79 per cup

about 22.7 cups from this bag · $0.05 per gram

This is bean cost at the selected dose, excluding filters, water, power, and gear. Use your purchase price and net bag weight; fractional cups represent equivalent full-dose servings.

Use the bag price, net weight, and dose to get the bean cost of one homemade cup. The default is a 12 oz (340 g) bag at $18 with 15 g per cup, about 22.7 cups at $0.79 each. That is bean cost, not a cafe comparison.

What this calculator does

If you buy a bag and brew at home, average bean cost per cup is:

bag price × dose ÷ bag weight

The default is a 12 oz (340 g) bag at $18 and 15 g per cup: about 22.7 cups at $0.79 each. Fifteen grams is the same filter starting point as brew ratio and the brew ratio calculator. It is not a required cup size.

Use the net weight printed on the bag. For help understanding the other label information, see how to read a coffee bag; for care after opening, see storing coffee.

How to use it

Enter what you paid, the grams on the bag, and the dose you actually use. The buttons—½ lb, 1 lb, 250 g, 12 oz, and 1 kg—only save typing; they do not mean a size is a better deal.

The estimated number of servings is the bag’s net weight divided by the dose per cup.

Where the numbers come from

The 15 g dose matches the site’s usual 1:16 filter start. The 12 oz default follows a common North American retail size. A half pound is 227 g and a pound is 454 g on this page, from avoirdupois ounces rounded to whole grams; 250 g is widely cited as a global specialty retail size. These are common packaging sizes; use the net weight printed on your bag.

The default price is not a market survey and not a suggested retail price.

What the number cannot tell you

This page does not add filters, water, power, milk, or time, and it does not amortize a grinder or kettle. It cannot tell you that home brewing is cheaper than a cafe, and it cannot tell you whether the coffee tastes good.

Common Misconceptions

  • Is $18 a typical bag price?

    No. It is an example value you can replace. Use the price on your bag or receipt.

  • Why 15 grams per cup?

    It matches the site’s brew-ratio calculator—15 g of coffee to 240 g of water, a common 1:16 filter start. For espresso or another recipe, enter the dose you actually use.

  • Why default to 12 ounces?

    It has long been a familiar North American retail size, about 340 g. Buttons also cover a half pound (227 g), 1 lb (454 g), 250 g, and 1 kg. Use the net weight on the package.

  • What if the last brew does not fill a full dose?

    The result is the cost of one serving at your selected dose. A final brew using fewer grams costs less. A fractional cup count represents equivalent full-dose servings, not the number of times you brew.

  • Does this include filters, electricity, or a grinder?

    No. It is roasted-coffee cost only. It is not a cafe-versus-home comparison; a shop price also covers rent, labor, and often milk.

Sources and Notes