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.
- Uniform rectangular cuts only, allowing one global rotation. Not mixed-orientation packing; cake height is unchanged.
Example Calculation
- Cake length: 30 cm
- Cake width: 20 cm
- Portion length: 5 cm
- Portion width: 4 cm
A 30×20 cm cake divided into 5×4 cm rectangles yields 30 whole portions.
Frequently asked questions
How do I use this calculator?
Enter cake length, cake width, portion length, portion width. The result updates automatically. Use Reset to restore the example values.
What method does it use?
test both uniform grid orientations; choose max(floor(L/a)floor(W/b), floor(L/b)floor(W/a)).. Uniform rectangular cuts only, allowing one global rotation. Not mixed-orientation packing; cake height is unchanged.
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.