Gauss to teslas
Type a value in gauss to see it in teslas straight away, or type in the second box to convert back.
Loading the tool…
Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the gauss box.
- Read the result in teslas as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
T = G × 0.0001
Multiply the value in gauss by 0.0001 to get teslas.
Example
To convert 25 G to teslas: 25 × 0.0001 = 0.0025 T.
Conversion table
| Gauss (G) | Teslas (T) |
|---|---|
| 1 | 0.0001 |
| 2 | 0.0002 |
| 3 | 0.0003 |
| 5 | 0.0005 |
| 10 | 0.001 |
| 20 | 0.002 |
| 25 | 0.0025 |
| 50 | 0.005 |
| 100 | 0.01 |
| 250 | 0.025 |
| 500 | 0.05 |
| 1,000 | 0.1 |
About the units
- Gauss
- The CGS unit of magnetic flux density, corresponding to exactly 0.0001 tesla, still common in magnet specifications.
- Tesla
- The SI unit of magnetic flux density, equal to one weber per square meter.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many teslas are in one gauss?
1 G = 0.0001 T exactly.
How do I convert gauss to teslas?
Use T = G × 0.0001. For example, 25 G = 0.0025 T.
How many gauss are in one tesla?
1 T = 10,000 G.
How many gauss are in one tesla?
One tesla is exactly 10000 gauss, so a 1.5 tesla MRI scanner is 15000 gauss.
How strong is the Earth's magnetic field?
At the surface it ranges from about 25 to 65 microteslas depending on location, roughly 0.25 to 0.65 gauss.