Convert Microtesla to Millitesla (µT to mT)
1 microtesla (µT) = 0.001 millitesla (mT). 1 mT = 1000 µT. Example: 15 µT = 15 × 0.001 = 0.015 mT.
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1 µT = 0.001 mT
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk microtesla to millitesla converter to paste a column from Excel.
How to Convert Microtesla to Millitesla
- 1 µT = 0.001 mT
- 1 mT = 1000 µT
- Example: convert 15 µT to mT: 15 µT = 15 × 0.001 mT = 0.015 mT
Formula
mT = µT ÷ 1000
Derivation from SI units:
- 1 µT = 10⁻⁶ T
- 1 mT = 10⁻³ T
- 1 µT = 0.000001 T ÷ 0.001 T per mT = 0.001 mT
Both units are defined exactly, so the factor is exact. Microtesla definition: microtesla; Millitesla definition: millitesla.
Worked examples
- A reading of 1 µT converts to 0.001 mT.
1 µT × 0.001 = 0.001 mT - A value of 25 µT is 0.025 mT.
25 µT × 0.001 = 0.025 mT
Microtesla to Millitesla conversion table
| Microtesla (µT) | Millitesla (mT) |
|---|---|
| 0.1 µT | 0.0001 mT |
| 0.2 µT | 0.0002 mT |
| 0.4 µT | 0.0004 mT |
| 1 µT | 0.001 mT |
| 5 µT | 0.005 mT |
| 10 µT | 0.01 mT |
| 25 µT | 0.025 mT |
| 50 µT | 0.05 mT |
| 65 µT | 0.065 mT |
| 100 µT | 0.1 mT |
Where it's used
Microtesla are used for earth’s magnetic field and compasses, while millitesla appear in fridge and small permanent magnets (about 5–100 mT). Both measure magnetic flux density (B field), so the conversion is a fixed factor.
Microtesla to other magnetic flux density units
| Conversion | 1 µT equals |
|---|---|
| microtesla to millitesla | 0.001 mT |
| microtesla to tesla | 0.000001 T |
| microtesla to gauss | 0.01 G |
| microtesla to milligauss | 10 mG |
| microtesla to nanotesla | 1000 nT |
| microtesla to kilogauss | 0.00001 kG |
Frequently asked questions
How many millitesla are in 1 microtesla?
1 µT = 0.001 mT.
How do I convert microtesla to millitesla?
Multiply the value in µT by 0.001, or divide it by 1000. For example, 15 µT × 0.001 = 0.015 mT.
Is the µT to mT conversion exact?
Yes. Both units are defined exactly, and 1 µT is exactly 0.001 mT.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Microtesla to Millitesla (µT to mT). Retrieved October 25, 2026, from https://scientificconverters.com/magnetic-flux-density/microtesla-to-millitesla/
IEEE
Scientific Converters, "Convert Microtesla to Millitesla (µT to mT)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/magnetic-flux-density/microtesla-to-millitesla/