Coffee Cost Calculator
What does a cup of coffee at home really cost? Enter your bag, your dose and how often you brew to see the price per cup, how long a bag lasts, and what you save compared with buying a drink.
Your numbers
The beans
How you brew
Filter paper, milk, sugar.
What you compare to
A comparable cup from a cafe.
Grinder, brewer, scale.
Home brewing cost
Rp 9.000 per cup
You save by brewing at home
Rp 1.274.000 per month
Rp 15.288.000 over a year, about 61 cups a month.
- One bag lasts
- 8.3 days
- Cups per bag
- 16.7
- Equipment payback
- No equipment cost entered
Per month, side by side
How this was worked out
- Rp 150.000 for 250 g at 15 g per brew gives 16.7 cups, or Rp 9.000 of coffee per cup.
- 2 brews a day on 7 days a week is 61 cups a month (52 weeks and 12 months a year).
- Saving per cup is the bought drink (Rp 30.000) minus your cost (Rp 9.000): Rp 21.000.
This is a simple estimate from the numbers you enter. It leaves out water, electricity, wasted coffee, your time and the pleasure of a cafe visit, and prices change. Use it as a rough guide, not financial advice.
Dose drives the price
The same bag costs less per cup with a smaller dose. A scale lets you keep every brew at the dose you planned instead of guessing.
Compare like with like
Use the price of a drink similar to what you brew, such as a filter coffee or a flat white, and add extras like milk in the extras field.
Equipment pays back slowly
A grinder or brewer is a one-off cost. The calculator divides it by your monthly saving, and tells you when it never pays back.
How the numbers are worked out
Every figure comes from the numbers you enter, plus one fixed assumption about the calendar. Nothing is estimated from outside data, so change any field and the results follow.
Cups per bag
bag weight ÷ dose
Cost per cup
bag price ÷ cups per bag + extras per cup
Days a bag lasts
cups per bag ÷ brews per day × 7 ÷ days per week
Cups per month
brews per day × days per week × 52 ÷ 12
Monthly saving
(drink price − cost per cup) × cups per month
Equipment payback
equipment cost ÷ monthly saving, rounded up to whole months
- Yearly saving is the monthly saving times 12.
- If home brewing costs the same as or more than the drink, the payback is shown as "Never" and the saving is negative.
- Rupiah amounts are shown as whole numbers. US dollars and euros show cents.
- The calculator leaves out water, power, wasted coffee and your time.
Dialled in your dose?
The Ratio Calculator turns your dose and brew size into the right amount of water.