To convert gauss to teslas, multiply by 0.0001. That factor is the whole relationship: both units measure the strength of a magnetic field, so the conversion is a proportion with no offset and no substance-specific constant.
The tesla is the SI unit of magnetic flux density. One tesla is a very strong field: an MRI scanner runs at 1.5 to 3 T. The gauss is the CGS unit still used for magnet specifications: one tesla is exactly 10,000 gauss.
Two tables follow: rounded steps for quick lookup, and a set of real reference quantities converted into teslas, which is usually more useful than the bare number.
The formula
gauss- The amount you are converting, in gauss
0.0001- The exact number of teslas in one gauss
teslas- The converted result
How it works, step by step
- Enter the value in gauss.
- It is multiplied by 0.0001, the exact factor between the two units.
- The answer is shown in teslas, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Neodymium magnet, pole face: 1.3e+04 G in teslas
At 1.3e+04 G (neodymium magnet, pole face), the same quantity in teslas is 1.3e+04 × 0.0001 = 1.3 T. One gauss is 0.0001 teslas, so the numbers shrink as expected.
Fridge magnet: 50 G in teslas
Take fridge magnet, roughly 50 G. The conversion is a single multiplication — 50 × 0.0001 — giving 0.005 T. Because the relationship is proportional, doubling the input doubles the answer to 0.01 T.
How to read your score
Frequently asked questions
How many teslas are in one gauss?
Exactly 0.0001. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert gauss to teslas?
teslas = gauss × 0.0001. Reversed, gauss = teslas ÷ 0.0001, which is the same as multiplying by 10,000.
Which is the bigger unit, the gauss or the tesla?
The tesla. One gauss is only 0.0001 of a tesla, so it takes 10,000 gauss to make one tesla.
What does this quantity actually measure?
Both units measure the strength of a magnetic field. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a gauss?
The gauss is the CGS unit still used for magnet specifications: one tesla is exactly 10,000 gauss.
What is a tesla?
The tesla is the SI unit of magnetic flux density. One tesla is a very strong field: an MRI scanner runs at 1.5 to 3 T.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Gauss to teslas reference tables
| Gauss | Teslas |
|---|---|
| 0.5 G | 5e-05 T |
| 1 G | 0.0001 T |
| 2 G | 0.0002 T |
| 3 G | 0.0003 T |
| 5 G | 0.0005 T |
| 10 G | 0.001 T |
| 20 G | 0.002 T |
| 25 G | 0.0025 T |
| 50 G | 0.005 T |
| 75 G | 0.0075 T |
| 100 G | 0.01 T |
| 250 G | 0.025 T |
| 500 G | 0.05 T |
| 1000 G | 0.1 T |
| 5000 G | 0.5 T |
Exact factor: 1 gauss = 0.0001 teslas.
| Quantity | G | T |
|---|---|---|
| Earth's field | 0.5 G | 5e-05 T |
| Fridge magnet | 50 G | 0.005 T |
| Speaker gap | 1e+04 G | 1 T |
| MRI scanner | 3e+04 G | 3 T |
| Neodymium magnet, pole face | 1.3e+04 G | 1.3 T |
| Near household wiring | 0.001 G | 1e-07 T |
Published reference values, converted with the same factor this page uses.