Convert Millitesla to Tesla (mT to T)
1 millitesla (mT) = 0.001 tesla (T). 1 T = 1000 mT. Example: 15 mT = 15 × 0.001 = 0.015 T.
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1 mT = 0.001 T
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millitesla to tesla converter to paste a column from Excel.
How to Convert Millitesla to Tesla
- 1 mT = 0.001 T
- 1 T = 1000 mT
- Example: convert 15 mT to T: 15 mT = 15 × 0.001 T = 0.015 T
Formula
T = mT ÷ 1000
Derivation from SI units:
- 1 mT = 10⁻³ T
- 1 T = 1 Wb/m² = 1 kg/(s²·A), the SI unit of magnetic flux density
Both units are defined exactly, so the factor is exact. Millitesla definition: millitesla; Tesla definition: tesla.
Worked examples
- A reading of 5 mT converts to 0.005 T.
5 mT × 0.001 = 0.005 T - A value of 100 mT is 0.1 T.
100 mT × 0.001 = 0.1 T
Millitesla to Tesla conversion table
| Millitesla (mT) | Tesla (T) |
|---|---|
| 0.05 mT | 0.00005 T |
| 0.1 mT | 0.0001 T |
| 1 mT | 0.001 T |
| 5 mT | 0.005 T |
| 10 mT | 0.01 T |
| 50 mT | 0.05 T |
| 100 mT | 0.1 T |
| 300 mT | 0.3 T |
| 500 mT | 0.5 T |
| 1000 mT | 1 T |
Where it's used
Millitesla are used for fridge and small permanent magnets (about 5–100 mT), while tesla appear in MRI scanners (1.5 T and 3 T). Both measure magnetic flux density (B field), so the conversion is a fixed factor.
Millitesla to other magnetic flux density units
| Conversion | 1 mT equals |
|---|---|
| millitesla to tesla | 0.001 T |
| millitesla to gauss | 10 G |
| millitesla to microtesla | 1000 µT |
| millitesla to milligauss | 10000 mG |
| millitesla to nanotesla | 1000000 nT |
| millitesla to kilogauss | 0.01 kG |
Frequently asked questions
How many tesla are in 1 millitesla?
1 mT = 0.001 T.
How do I convert millitesla to tesla?
Multiply the value in mT by 0.001, or divide it by 1000. For example, 15 mT × 0.001 = 0.015 T.
Is the mT to T conversion exact?
Yes. Both units are defined exactly, and 1 mT is exactly 0.001 T.
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 Millitesla to Tesla (mT to T). Retrieved October 25, 2026, from https://scientificconverters.com/magnetic-flux-density/millitesla-to-tesla/
IEEE
Scientific Converters, "Convert Millitesla to Tesla (mT to T)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/magnetic-flux-density/millitesla-to-tesla/