THE NUMBERS, EXPLAINED
How to use this calculator.
Ingredient and pack quantities must use matching units. Only the used quantity is costed, not the cash cost of buying full packs.
Start with your inputs
Enter ingredient quantities, pack quantities, pack prices (£), servings. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Ingredient quantities | 100,200 |
| Pack quantities | 1000,500 |
| Pack prices (£) | 5,4 |
| Servings | 4 |
A worked example
With the example inputs above, recipe cost (£) is 2.1. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Recipe cost (£) | 2.1 |
| Cost per serving (£) | 0.53 |
How this is calculated
Recipe cost (£)
For each ingredient: used quantity / pack quantity × pack price. Add the ingredient costs.
Cost per serving (£)
Recipe cost / d.
Symbols and units
- a
- Ingredient quantities
- b
- Pack quantities
- c
- Pack prices (£)
- d
- Servings
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
Ingredient and pack quantities must use matching units. Only the used quantity is costed, not the cash cost of buying full packs.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Recipe cost (£); Cost per serving (£). The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: Ingredient and pack quantities must use matching units. Only the used quantity is costed, not the cash cost of buying full packs.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
Read the quality report →