Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Entered yield must account for bones, trim and cooking loss. Quantity planning only, not food-temperature or nutrition guidance.
Example Calculation
- Adults: 20
- Children: 10
- Cooked portion per adult: 200 g
- Cooked portion per child: 100 g
- Cooked edible yield from raw: 65 %
- Extra allowance: 10 %
Cooked demand 5 kg plus 10% extra at a 65% raw-to-edible yield requires about 8.462 kg raw.
Frequently asked questions
How do I use this calculator?
Enter adults, children, cooked portion per adult, cooked portion per child, cooked edible yield from raw, extra allowance. The result updates automatically. Use Reset to restore the example values.
What method does it use?
raw kg=(adult portions+child portions) × (1+extra)/yield/1000.. Entered yield must account for bones, trim and cooking loss. Quantity planning only, not food-temperature or nutrition guidance.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.