complete drinks before meaningful waste. Roughly one week at two drinks per day.
Know how many coffees are really in the bag.
Turn dose, household demand and dial-in waste into cups per bag, days of coffee, monthly cost and a delivery interval that does not leave beans ageing in the cupboard.
Works for 250g, 500g and 1kg bags · no prices are supplied or guessed by Home Coffee IndexUse your real routine
How quickly will the bag disappear?
Set the household’s drinks, dry coffee dose, bag and expected dial-in waste. The calculator turns them into a realistic buying cadence.
Your bean plan
13
drinks per bag238g usable after the allowance
- One bag lasts
- 6.5 days
- Bags per 4 weeks
- 4.2
- Estimated 4-week cost
- £44.56
- Estimated yearly cost
- £579.33
Suggested delivery starting point
Planning estimate only. Drink size does not determine dry dose, and prices, shipping and subscription terms must be checked with the roaster.One 250g bag about every 7 days. Check the first two deliveries, then adjust for holidays, guests and actual waste.
Fast starting examples
Bag size only makes sense beside dose.
complete drinks before waste. Useful for a busy household, risky for a light drinker.
complete drinks before waste. A common filter-style planning example.
Bean calculator answers
The questions behind the delivery interval.
How many coffees can I make from a 250g bag?+
At an 18g dry dose, 250g contains 13 complete drinks before allowing for dial-in waste. With a 5% allowance, the practical result remains about 13 drinks. Smaller filter doses produce more cups; larger espresso doses produce fewer.
How many coffees are in a 1kg bag of beans?+
At 18g per drink, 1kg contains 55 complete doses before waste. A 5% allowance gives about 52 drinks. The useful answer depends on the dry coffee dose, not the finished cup size.
How long should a coffee subscription bag last?+
Divide the usable doses in the bag by the household’s drinks per day. Start a delivery interval close to that number of days, then adjust after two deliveries using actual leftovers and waste.
Does a latte use more coffee beans than an espresso?+
Not necessarily. A latte may use the same espresso dose as a straight espresso and add milk. A larger or stronger drink uses more beans only when the dry coffee dose or number of shots increases.