Enter a measurement in millimeters (mm) into the calculator to convert it into “thousandths”—either thousandths of an inch (thou/mil) or thousandths of a millimeter (micrometers, μm). Note: 1 mm = 0.001 m (one thousandth of a meter).
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Mm To Thousandths Formula
The following formula is used to convert from millimeters to thousandths of a millimeter (micrometers, μm).
\mu\text{m} = \text{mm} \times 1000Variables:
- μm is the measurement in micrometers (thousandths of a millimeter)
- mm is the measurement in millimeters
To convert from millimeters to micrometers, multiply the measurement in millimeters by 1000.
If by “thousandths” you mean thousandths of an inch (thou/mil), use the exact conversion below (since 1 in = 25.4 mm):
\text{thou}=\frac{\text{mm}}{25.4}\times 1000| Millimeters (mm) | Micrometers (µm) |
|---|---|
| 0.10 | 100 |
| 0.20 | 200 |
| 0.25 | 250 |
| 0.30 | 300 |
| 0.50 | 500 |
| 0.75 | 750 |
| 1 | 1,000 |
| 1.5 | 1,500 |
| 2 | 2,000 |
| 2.5 | 2,500 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 6 | 6,000 |
| 8 | 8,000 |
| 10 | 10,000 |
| 12 | 12,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| Micrometers (µm) here are thousandths of a millimeter. Conversion: µm = mm × 1000, mm = µm ÷ 1000. | |
What is an Mm To Thousandths Conversion?
An mm to thousandths conversion means converting a length in millimeters into a unit expressed in thousandths. The exact meaning depends on context: in machining, “thou” (or “mil”) means a thousandth of an inch (0.001 in); in metric work, a thousandth of a millimeter is a micrometer (μm). Also, since 1 mm = 0.001 m, a millimeter is already one thousandth of a meter.
