maratoolHow to convert tesla to gauss
Type a flux density — read tesla, mT, µT, gauss, or gamma instantly.
Magnet datasheets quote gauss in the US and millitesla elsewhere; geophysics logs nanotesla as gamma. The Tesla to Gauss Converter connects the SI and CGS scales exactly.
How it works
- Pick units — "Tesla (T)" to "Gauss (G)", or any other pair.
- Type a value — the result updates as you type, with swap and copy.
- Copy — one click, with "Copied!" feedback.
Magnetic flux density conversion factors
Every unit converts through the tesla (the base unit). To convert A → B, multiply by A's factor and divide by B's:
| Unit | = this many teslas |
|---|---|
| Tesla (T) | 1 |
| Millitesla (mT) | 0.001 |
| Microtesla (µT) | 1.0000 × 10^-6 |
| Nanotesla (nT) | 1.0000 × 10^-9 |
| Kilogauss (kG) | 0.1 |
| Gauss (G) | 0.0001 |
| Milligauss (mG) | 1.0000 × 10^-7 |
| Gamma (γ) | 1.0000 × 10^-9 |
When you need it
Anchors: Earth’s field ≈ 50 µT (0.5 G), a neodymium magnet surface ≈ 0.3–0.5 T (3,000–5,000 G), MRI machines 1.5–3 T, and magnetometer surveys resolve single gammas (nT).
Sources & methodology
Conversion factors follow NIST Special Publication 811; exact-by-definition factors are marked in the tool itself. All math runs client-side in your browser — nothing is uploaded.
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