How do you calculate the cost per cup of coffee?

Divide the price of the bag by its weight to get a per-gram cost, then multiply by the grams of coffee used per cup (your dose). Add a small allowance for grinding waste and chaff, since a small percentage of every roasted bean is lost as fines and doesn't make it into the cup.

How much coffee should I use per cup?

A common starting ratio is about 15 to 18 grams of ground coffee per 8 to 10 fluid ounces of water for drip or pour-over, roughly 18 to 20 grams for a double espresso shot, and 60 to 70 grams per liter for cold brew concentrate. Personal taste and roast level shift this within a reasonable range.

Is buying whole bean coffee cheaper than pre-ground?

Whole bean coffee is usually priced similarly to pre-ground from the same roaster, but it stays fresh longer and lets you dial in grind size for your brew method, which reduces waste and improves extraction, effectively lowering your real cost per cup over time.

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Coffee Bean Cost Calculator

Find your real cost per cup, compare it to buying from a café, and see if a subscription actually saves you money — all calculated instantly in your browser.

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Currency

Weight unit

Bag price (what you paid)

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Bag weight

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Dose per cup (ground coffee used)

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Cups per day

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Café price per cup (optional — for comparison)

Waste & shrinkage (grind fines, chaff, spills)

Extras per cup (milk, syrup, filters)

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Compare against a subscription plan

Check if a recurring bean subscription beats buying bags as needed

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Your true cost per cup

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Based on your bag price, dose, and waste allowance

Cups per bag

Cost per gram

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Daily spend

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Spend projection — 1 month
Period	Cups	Home cost	Café cost

All calculations run locally in your browser — nothing you enter is sent anywhere or stored.
Figures are estimates for planning purposes and may vary from your actual receipts.

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Coffee Bean Cost Calculator

Coffee Bean Cost Calculator

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Coffee Bean Cost Calculator

Step 1: Choose your brew method

Step 2: Enter your bag and brewing details

Step 3: Fine-tune waste, extras, and projections

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