Convert Teslas (T) to Gauss (G)
Teslas are the SI magnetic unit, gauss the older CGS one — and magnet datasheets freely mix them. The conversion is a clean factor: 1 T = 10,000 G.
Formula
1 T = 10000 G
To convert T to G, multiply the value by 10000.
Conversion Table
| Teslas (T) | Gauss (G) |
|---|---|
| 0.01 T | 100 G |
| 0.1 T | 1000 G |
| 0.5 T | 5000 G |
| 1 T | 10000 G |
| 2 T | 20000 G |
| 3 T | 30000 G |
| 5 T | 50000 G |
| 10 T | 100000 G |
| 15 T | 150000 G |
| 20 T | 200000 G |
| 25 T | 250000 G |
| 50 T | 500000 G |
| 100 T | 1000000 G |
| 250 T | 2500000 G |
| 500 T | 5000000 G |
| 1000 T | 10000000 G |
| 2500 T | 25000000 G |
| 5000 T | 50000000 G |
| 10000 T | 100000000 G |
| 50000 T | 500000000 G |
Common T to G Examples
- 1 T = 10000 G
- 5 T = 50000 G
- 10 T = 100000 G
- 25 T = 250000 G
- 50 T = 500000 G
- 100 T = 1000000 G
- 500 T = 5000000 G
- 1000 T = 10000000 G
About T to G
The tesla is huge, which is why the gauss survives: everyday fields sound better in gauss. The Earth’s field is ~0.5 G (50 µT), a fridge magnet ~50 G, a strong neodymium magnet ~5,000 G (0.5 T) at its surface, an MRI scanner 15,000–30,000 G (1.5–3 T).
Magnet listings often quote surface field in gauss while scientific specs use teslas — divide gauss by 10,000 and you are in SI.
About the units
Teslas (T) — The tesla is the SI unit of magnetic flux density, named after Nikola Tesla. It is a big unit: an MRI scanner runs at 1.5–3 T, a fridge magnet manages about 5 mT, and the Earth’s field is a tiny 30–60 µT.
Gauss (G) — The gauss is the CGS magnetic unit (10,000 G = 1 T), named after Carl Friedrich Gauss. Magnet datasheets and older physics texts still quote gauss — the Earth’s magnetic field is conveniently about 0.5 G.
Frequently Asked Questions
How many gauss is 1 tesla?
10,000 G. The gauss is the CGS unit; the tesla is the SI unit.
How strong is an MRI magnet in gauss?
A 3 T clinical scanner is 30,000 G — about 60,000 times the Earth’s magnetic field.
What should I check before trusting a T to G result?
Confirm the input value, the unit direction (T to G, not the reverse), and that the formula 1 T = 10000 G has been applied.
How do T and G compare in size?
Compare them through the ratio: 1 T equals 10000 G, which shows directly which unit represents a larger amount of Magnetic Field.
What is a quick way to estimate T to G?
Round 10000 to one or two significant digits and multiply mentally. Use the exact factor when accuracy matters.
Is there a shortcut for converting T to G?
The shortest route is the formula itself: 1 T = 10000 G. Memorizing this single line covers every case.
Why is the conversion factor between T and G 10000?
It comes from the official definitions of both Magnetic Field units, which are anchored to internationally agreed reference standards.
Can I convert large numbers of T to G at once?
Yes. The same ratio 10000 applies to any value, whether it is a fraction or millions of T.