Examples
Examples
Try the starting example
- JSON User-supplied chart [size label,inside circumference mm]
- [["S",50],["M",53],["L",56]]
- Measured inside circumference (mm)
- 54
- Nearest chart size
- M
- Chart circumference (mm)
- 53
- Measurement minus chart (mm)
- 1
Try another scenario
- JSON User-supplied chart [size label,inside circumference mm]
- [["S",50],["M",53],["L",56]]
- Measured inside circumference (mm)
- 55
- Nearest chart size
- L
- Chart circumference (mm)
- 56
- Measurement minus chart (mm)
- -1
Calculation method
Calculation method
Nearest chart size
Minimize absolute circumference error; ties choose smaller circumference then label.
Chart circumference (mm)
Circumference of chosen chart row.
Measurement minus chart (mm)
Measured circumference minus chosen chart circumference.
Symbols and units
- a
- JSON User-supplied chart [size label,inside circumference mm]
- b
- Measured inside circumference (mm)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Mapping to supplied chart only; no invented regional sizing standard or fit/medical recommendation. Supported limits: All numeric inputs must be finite. Only the explicitly described mathematical scenario is supported.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.