Understanding the coffee cost per cup calculator — concept and principle
A daily coffee habit can cost a few hundred or a few thousand a year depending on how you make it. This calculator works out the cost of one cup brewed from whole beans at home and compares the yearly cost of home beans, capsule pods and café coffee at your number of cups per day.
How it is calculated
- Home beans per cup = bean price per kg × grams per cup ÷ 1,000
- Yearly beans = cost per cup × cups per day × 365
- Yearly pods = pod price × cups per day × 365
- Yearly café = café price × cups per day × 365
Grams per cup is the dose of ground coffee. A typical double espresso uses about 18 g, and filter coffee is often brewed at about 60 g per litre, so a 250 mL mug needs about 15 g. Prices are per kilogram for beans and per item for pods and café drinks.
The principle
Coffee cost per cup scales with dose: divide the price per kilogram by 1,000 to get the price per gram, then multiply by grams used. One kilogram at 18 g a cup makes about 55 cups. The yearly comparison simply multiplies each method's per-cup price by the number of cups in a year, so the ratio between methods stays the same whatever your daily count. The café price includes labour, rent and milk, which is why it is many times the ingredient cost.
Worked example
- Inputs: beans $20/kg, 18 g per cup, pod $0.45, café $4.00, 2 cups per day.
- Beans per cup: $20 × 18 ÷ 1,000 = $0.36.
- Cups per year: 2 × 365 = 730.
- Yearly beans: $0.36 × 730 = $262.80.
- Yearly pods: $0.45 × 730 = $328.50.
- Yearly café: $4.00 × 730 = $2,920.00.
| Beans price per kg | Home beans per cup |
|---|---|
| 5 | $0.09 |
| 10 | $0.18 |
| 15 | $0.27 |
| 20 | $0.36 |
| 25 | $0.45 |
| 30 | $0.54 |
| 40 | $0.72 |
How to read the result
The gap between home and café is usually the headline: here café coffee costs about eleven times as much as home-brewed beans. Home costs exclude milk, sugar, filters, electricity and the machine itself; spread a machine's price over its life and add it per cup for a fairer comparison. Pods sit between the two, trading higher ingredient cost for convenience.
Common mistakes
- Using the dose for a single shot when you drink doubles.
- Forgetting milk, which can cost more than the coffee in a latte.
- Ignoring the machine price when comparing methods.
Frequently asked questions
How many cups does a kilogram of coffee make?
1,000 ÷ grams per cup: about 55 cups at 18 g, or about 67 at 15 g.
Is a pod machine cheaper than a café?
Usually much cheaper per cup, but often dearer than whole beans.
How do I include the machine price?
Divide its price by the number of cups you expect to make over its life and add that to the cost per cup.
Sources: Specialty Coffee Association — brewing standards