Magnetic Flux Density / G → mT
Convert Gauss to Milliteslas
Convert magnetic B-field flux density in teslas and gauss. Convert Gauss (G) to Milliteslas (mT). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Milliteslas to Gauss →
How to convert gauss to milliteslas
One tesla equals one weber per square meter. A gauss is 10⁻⁴ tesla. Do not equate gauss with oersted in arbitrary media; those units describe B and H respectively.
Use x for the value in G, b for the intermediate value in T, and y for the result in mT.
mT = G × 0.0001 ÷ 0.001
Worked examples
10 G ≈ 1 mT
Step 1: (10 × 0.0001) ≈ 0.001 T.
Step 2: 0.001 ÷ 0.001 ≈ 1 mT.20 G ≈ 2 mT
Step 1: (20 × 0.0001) ≈ 0.002 T.
Step 2: 0.002 ÷ 0.001 ≈ 2 mT.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Gauss
Gauss (G) measures magnetic flux density under the conventions above. The base value in T is (x × 0.0001), where x is the numerical value in G. Factors shown here are rounded for display; calculations use the stored factor.
About Milliteslas
Milliteslas (mT) measures magnetic flux density under the conventions above. The base value in T is (x × 0.001), where x is the numerical value in mT. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Gauss to milliteslas reference table
| Gauss (G) | Milliteslas (mT) |
|---|---|
| 1 | 0.1 |
| 5 | 0.5 |
| 10 | 1 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 1000 | 100 |
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