Gauss ↔ Tesla Converter
Convert magnetic flux density between gauss (G) and tesla (T). You can also see millitesla (mT) and microtesla (µT) instantly.
How to convert gauss to tesla
Gauss and tesla are both units of magnetic flux density. The tesla is the SI unit, while gauss comes from the CGS unit system. The conversion is straightforward:
- 1 tesla (T) = 10,000 gauss (G)
- 1 gauss (G) = 0.0001 tesla (T)
So to convert gauss to tesla, divide by 10,000. To convert tesla to gauss, multiply by 10,000.
Core formulas
- T = G ÷ 10,000
- G = T × 10,000
Quick conversion table
| Gauss (G) | Tesla (T) | Millitesla (mT) |
|---|---|---|
| 1 | 0.0001 | 0.1 |
| 100 | 0.01 | 10 |
| 1,000 | 0.1 | 100 |
| 10,000 | 1 | 1,000 |
Where this conversion is used
You will see gauss-to-tesla conversion in many practical settings:
- Physics and engineering: magnetic field specs in papers and lab notes can mix CGS and SI units.
- Electronics and sensors: Hall-effect sensors and magnetometer data often use mT, µT, or G.
- Medical imaging: MRI scanners are usually rated in tesla (for example, 1.5 T or 3 T).
- Industrial magnets: product datasheets may list field strength in gauss.
- Education: classrooms and textbooks frequently require switching unit systems.
Worked examples
Example 1: Convert 2,500 G to tesla
Use T = G ÷ 10,000. So:
2,500 ÷ 10,000 = 0.25 T
Example 2: Convert 0.8 T to gauss
Use G = T × 10,000. So:
0.8 × 10,000 = 8,000 G
Example 3: Convert 35,000 G to tesla
35,000 ÷ 10,000 = 3.5 T
This is in the range of a strong medical imaging magnet.
Common mistakes to avoid
- Forgetting the factor of 10,000 and only dividing by 100.
- Mixing gauss (G) with grams (g) because of similar symbols in plain text.
- Ignoring prefixes: mT is millitesla, µT is microtesla, and they differ by 1,000×.
- Rounding too early when working with very small fields.
FAQ
Is gauss bigger than tesla?
No. Tesla is the larger unit. One tesla equals ten thousand gauss.
How many gauss are in 1 tesla?
10,000 gauss.
How many tesla are in 1 gauss?
0.0001 tesla.
Can I use this for tesla to gauss too?
Yes. Change the input unit to Tesla (T), enter your value, and click Convert.
Bottom line
If you remember only one thing, remember this: 1 T = 10,000 G. This converter handles both directions instantly and helps you avoid unit errors in magnetic field calculations.