Curious what each home-brewed cup really costs—and how it compares to your café spend?
This calculator breaks it down by per cup, daily, weekly, and yearly totals using your bean price, dose, milk, and extras. It uses industry brew-ratio presets for convenience (SCA 55–60 g/L) and includes a quick savings view.
As a general wellness note, most healthy adults should stay under ~400 mg caffeine/day (FDA, 2024), and beverages hotter than 65 °C are flagged by IARC as a scald/cancer-risk threshold—let drinks cool briefly before sipping (FDA, 2024; IARC, 2016).
☕ Coffee Cost-Per-Cup & Budget Calculator
v2025| Amount | Home cost | Café cost | Savings |
|---|---|---|---|
| Per cup/drink | |||
| Daily | |||
| Weekly | |||
| Yearly |
How We Calculate
bag_price / bag_size_gDose w/ waste =
dose_g × (1 + waste_pct/100)Milk cost per cup =
(milk_ml / 1000) × milk_price_per_lHome cost per cup =
(beans_cost_per_g × dose_waste) + milk_cost_per_cup + extras_per_cupHome daily/weekly/yearly =
per_cup × cups_per_day, daily × 7, daily × 365Café daily/weekly/yearly =
price_per_drink × (drinks_per_week ÷ 7), price × drinks_per_week, daily × 365Savings (per cup/day/week/year) =
café − home at each timescaleElectricity/water/equipment are excluded in this minimal version to keep it quick; you can add them later as optional fields.
Why use this calculator
- See real savings: Instantly compare home cost per cup to café pricing across day/week/year.
- Brew with confidence: Defaults align with recognized coffee standards (e.g., SCA brew ratio 55–60 g/L ≈ 1:18–1:17), so your starting doses are sensible (SCA, 2024; SCA, 2017).
- Plan smarter: Tie bean purchases to actual consumption and budget by month or year.
- Stay comfortable & safe: Briefly cooling very hot drinks (≥ 65 °C) reduces esophageal burn/cancer risk classified by IARC; also keep total caffeine under ~400 mg/day unless advised otherwise (IARC, 2016; FDA, 2024).
- Consistency = taste: Using a stable dose per cup (guided by brew-ratio ranges) helps repeat flavor targets while controlling costs (SCA, 2024).
How it works
Model used: simple unit-cost arithmetic. We convert your bean cost per gram, add dose × waste, add milk and extras, then scale by cups/day for period totals. Café costs scale from your café price and weekly frequency.
Model used: simple unit-cost math. We figure out what one home cup costs (beans + milk + extras), then scale it to a day, week, and year. We do the same for your café drinks and show the difference.
Steps
- Figure out beans cost per gram
Take the bag price and divide it by the bag size in grams. That gives the cost of one gram of beans. - Account for dose and small losses
Start with your dose per cup (in grams). Add your waste percentage (for things like filter absorption or grinder purges).
Example: 16 g with 5% waste means you actually use 16 × 1.05 = 16.8 g worth of beans. - Add milk (if you use it)
Convert milk milliliters to liters (divide by 1000), then multiply by your milk price per liter. That’s your milk cost per cup. - Add any extras
Include syrups, sugar, chocolate, etc. as a per-cup amount. - Home cost per cup
Multiply the beans cost per gram by the dose including waste, then add the milk cost per cup and your extras.
Put simply: beans + milk + extras = home cost per cup. - Home totals
- Per day: multiply home cost per cup by your home cups per day.
- Per week: multiply the daily total by 7.
- Per year: multiply the daily total by 365.
- Café totals
- Per drink: that’s just your café price per drink.
- Per day: multiply your café price by (café drinks per week ÷ 7).
- Per week: multiply café price by café drinks per week.
- Per year: multiply the daily café total by 365.
- Savings
For each time period (per cup/drink, day, week, year), subtract the home total from the café total.
Positive numbers mean you save by brewing at home; negative means café is cheaper for that setup.
What each input means (and units)
- Bag price (your currency) & bag size (g)
- Dose per cup (g) and waste % (to cover purges/absorption)
- Milk per drink (mL) and milk price per liter
- Extras per cup (currency)
- Home cups per day (count)
- Café price per drink (currency) and café drinks per week (count)
- Currency symbol (formatting only)
Assumptions & limits
- Costs exclude electricity/water/equipment depreciation to keep inputs minimal.
- Defaults for dose reflect common brew ratios near 55–60 g/L (≈1:18–1:17) used by the SCA in standards/sensory methods; you can override per method (SCA, 2024; SCA, 2017).
- Safety/comfort: Avoid “very hot” drinks ≥ 65 °C (IARC Group 2A) and consider total caffeine across all sources—~400 mg/day for most healthy adults (IARC, 2016; FDA, 2024).
Quick example
- Bag: $12 for 250 g → beans $0.048/g
- Dose: 16 g, waste 5 % → 16.8 g used → beans $0.81
- Milk: 0 mL, extras: $0.00 → home per cup ≈ $0.81
- If you drink 2 cups/day: $1.62/day, $11.34/week, $591/year
- Café price $4.00, 3 drinks/week: $1.71/day, $12/week, $624/year
- Savings per periods: café − home.
Brewing examples
- Espresso at home (milk drink)
Dose 19 g, waste 10 %, milk 200 mL, bag $16/250 g, milk $1.20/L, 1 cup/day. Expect higher per-cup cost than black coffee because milk adds ~$0.24 per 200 mL. - Pour-over (black)
Dose 16 g, waste 5 %, bag $14/250 g, 2 cups/day. Typical home per-cup cost falls around $0.70–$0.90 depending on bean price. - French press (weekend batch)
Dose 17 g, waste 5 %, 4 cups on weekends only (8 cups/week). Enter cups/day ≈ 1.14 and see annualized cost vs. buying those 8 café drinks.
(Dose presets are aligned with SCA brew-ratio ranges; exact sensory outcome also depends on grind and extraction, not just ratio (Batali et al., 2020; SCA, 2024).)
Related Coffeenatics tools
- Coffee to Water Ratio Calculator for Golden Brews – Find the perfect coffee-to-water balance for consistent, tasty cups. Based on SCA standards, great for dialing in any brew method.
- Coffee Cooling Time Calculator – Estimate how long your coffee needs to cool to safe, comfortable drinking temperature—no more burnt tongues.
- Coffee + Milk Equilibrium Temperature Calculator – Discover the final drinking temperature of your coffee once milk is added. Helps you balance flavor, comfort, and safety.
- Coffee Brewing Calculator (Advanced Tool for Coffee Enthusiasts) – A flexible tool for dialing in complex brews. Adjust grind, yield, and ratios to experiment like a pro barista.
FAQ: Coffee Cost Per Cup & Budget Calculator
What’s a “good” dose per cup?
Industry methods often start near 55–60 g coffee per liter of brew water (≈1:18–1:17); adjust to taste and method (SCA, 2024; SCA, 2017).
Why include a waste percentage?
Filters, puck purges, and retention add small losses. A 5–10 % buffer keeps costs realistic for most home setups.
Is there a recommended brew water temperature?
SCA materials commonly operate around 92–96 °C for hot brewing; flavor differences are modest within 87–93 °C at fixed strength/yield (Batali et al., 2020). Let drinks cool a bit before sipping for comfort (and safety).
How hot is too hot to drink?
IARC classifies very hot beverages (≥ 65 °C) as probably carcinogenic (Group 2A); letting coffee cool below that threshold reduces risk and scald potential (IARC, 2016).
How many cups per day is safe?
The FDA cites ~400 mg caffeine/day as not generally associated with negative effects for most healthy adults; sensitivities vary (FDA, 2024).
Why do my costs differ from friends’?
Bean price, bag size, dose, milk, and café prices vary by region. This tool exposes those drivers so you can tune them.
Does brew ratio change cost a lot?
Yes—dose is the dominant driver. Moving from 15 g to 19 g per cup increases beans cost about 27 % at the same bean price.
Do you include equipment or electricity?
No—this minimal model focuses on recurring consumables. You can add those as “extras” per cup if you want a fuller picture.
References
Batali, M. E., Ristenpart, W. D., & Guinard, J.-X. (2020). Brew temperature, at fixed brew strength and extraction, has little impact on the sensory profile of drip brew coffee. Scientific Reports, 10, 16450. https://doi.org/10.1038/s41598-020-73341-4
Food and Drug Administration. (2024, August 28). Spilling the beans: How much caffeine is too much? https://www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much
International Agency for Research on Cancer. (2016). IARC Monographs evaluate drinking coffee, maté, and very hot beverages (Press release No. 244). https://www.iarc.who.int/wp-content/uploads/2018/07/pr244_E.pdf
International Agency for Research on Cancer. (2018). Drinking coffee, maté, and very hot beverages (Monograph 116, NCBI Bookshelf overview). https://www.ncbi.nlm.nih.gov/books/NBK543949/
Specialty Coffee Association. (2017). Certified Home Brewer Program—Minimum certification requirements (PDF). https://sca.coffee/s/2017-SCA-CHB-Program-Requirements-ba6g.pdf
Specialty Coffee Association. (2024). SCA Standard 102-2024: Sample preparation for descriptive assessment (PDF). (See brew ratio 55–60 g/L guidance.) https://static1.squarespace.com/static/584f6bbef5e23149e5522201/t/6731cfbf355ac535d2d6074c/1731317695988/AW_SCA-102_Sample-Preparation_28.10.24_Secured.pdf