Description
Convert a supplied orthodontic wire diameter between millimetres and inches.
Dental model coordinates depend on scale, reference midlines, laterality and unit conventions. A wire diameter conversion differs from selecting a wire or estimating force, and a planar point distance differs from a complete arch measurement. Appliance labels and local geometry do not choose treatment stages or establish clinically suitable adjustments.
Convert a supplied orthodontic wire diameter between millimetres and inches.
When to use this tool
Use Orthodontic Wire Diameter Unit when you already have diameter, inputUnit and need to convert a supplied orthodontic wire diameter between millimetres and inches.
How to use the tool and how it works
- Enter diameter, inputUnit. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read millimeters, inches. Use the output convention below.
Require diameter>=0 and inputUnit mm or in; use exactly 25.4 mm per inch.1
The international inch is exactly 25.4 millimetres. This diameter conversion does not select a wire or establish its mechanical behavior.2
| Input field | Meaning and units | Accepted input |
|---|---|---|
| diameter | Diameter | Required. Finite number; minimum 0. |
| inputUnit | Exactly mm or in; one inch is 25.4 mm. | Required. Text; one of "mm", "in"; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| millimeters | Millimeters | Required. Finite number. |
| inches | Inches | Required. Finite number. |
{
"input": {
"diameter": 0.02,
"inputUnit": "in"
},
"output": {
"millimeters": 0.508,
"inches": 0.02
}
}Limitations and assumptions
- No wire material, cross-sectional shape, suitable size or orthodontic force is selected.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use calibrated dental models and the original coordinate, midline and appliance-plan definitions for a full geometric review. Keep simple unit changes and local offsets separate from choosing a wire, stage, force or treatment adjustment.
References
Similar or alternative tools
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