When to use this calculator
Estimate how long a coffee bag lasts at a selected daily drink rate. Assumes a constant dose and frequency without waste.
Explore the kitchen costs calculators for other questions in this topic. For a related calculation, use the Coffee Cost Per Cup Calculator: Estimate coffee-bean cost for one drink from bag price and dose.
PUTTING IT INTO PRACTICE
Coffee Bag Supply: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Coffee available (g) | 250 |
| Dose per drink (g) | 20 |
| Drinks per day | 2 |
| Result | 6.25 days |
- Check the input labels and enter the example values above.
- Apply the relationship: Supply days = available coffee/(dose × drinks per day).
- The result is 6.25 days, rounded for display.
How to interpret your result
Assumes a constant dose and frequency without waste.
Decide whether costs include waste, labour, utilities and tax before comparing results. Food cost percentage uses selling price as its base, whereas a markup uses cost. Unsaleable portions can raise cost per saleable serving.
Frequently asked questions
Does ingredient cost per serving include labour?
Only if labour is included in the cost you enter. The tool cannot infer unentered overhead or preparation costs.
When is the coffee bag supply calculator useful?
Estimate how long a coffee bag lasts at a selected daily drink rate. Assumes a constant dose and frequency without waste.
How do I use the coffee bag supply calculator?
Enter coffee available (g), dose per drink (g), drinks per day. The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Supply days = available coffee/(dose × drinks per day).
What should I check before using the result?
Assumes a constant dose and frequency without waste.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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