Convert magnetic flux density between tesla, gauss, millitesla, microtesla, nanotesla and milligauss.
| Conversion | Result | Formula |
|---|---|---|
| Tesla to gauss | 1 T = 10,000 G | gauss = tesla × 10,000 |
| Gauss to tesla | 1 G = 0.0001 T | tesla = gauss ÷ 10,000 |
| Millitesla to gauss | 1 mT = 10 G | gauss = millitesla × 10 |
| Gauss to millitesla | 1 G = 0.1 mT | millitesla = gauss ÷ 10 |
| Microtesla to milligauss | 1 µT = 10 mG | milligauss = microtesla × 10 |
| Milligauss to microtesla | 1 mG = 0.1 µT | microtesla = milligauss ÷ 10 |
| Unit | Symbol | Equal to |
|---|---|---|
| Tesla | T | 1 T |
| Millitesla | mT | 0.001 T |
| Microtesla | µT | 0.000001 T |
| Nanotesla | nT | 0.000000001 T |
| Gauss | G | 0.0001 T |
| Kilogauss | kG | 0.1 T |
| Milligauss | mG | 0.0000001 T |
| Gamma | γ | 0.000000001 T |
| Weber per square meter | Wb/m² | 1 T |
Magnetic flux density (the B-field) is measured in tesla in the SI system and gauss in the older CGS system. One tesla is 10,000 gauss, so 1 gauss is 100 microtesla.
| Source | Field strength |
|---|---|
| Earth’s magnetic field | 25–65 µT (0.25–0.65 G) |
| Fridge magnet | about 5 mT (50 G) |
| Neodymium magnet surface | about 1–1.4 T |
| MRI scanner | 1.5–3 T |
Environmental field surveys often use milligauss: 1 mG equals 0.1 µT.
One tesla equals 10,000 gauss.
Multiply microtesla by 10. For example, 0.2 µT equals 2 mG.
Between about 25 and 65 microtesla (0.25 to 0.65 gauss), depending on location.