Gauss to Milligauss Converter G → mG
1 gauss (G) = 1000 milligauss (mG). Type a value below — the conversion happens instantly, entirely on your device.
1 G = 1000 mG
1 gauss = 1000 milligauss
1 × 1000 = 1000
1 G equals 1000 mG, so multiplying by 1000 converts the value. The result describes the exact same quantity — only the measuring stick changes.
How to convert gauss to milligauss
milligauss = gauss × 1000 — multiply the gauss value by 1000.
Example: 10 G = 10,000 mG.
To convert the other way: gauss = milligauss ÷ 1000
Gauss to Milligauss conversion table
| Gauss (G) | Milligauss (mG) |
|---|---|
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 4 | 4000 |
| 5 | 5000 |
| 6 | 6000 |
| 7 | 7000 |
| 8 | 8000 |
| 9 | 9000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 30 | 30,000 |
| 40 | 40,000 |
| 50 | 50,000 |
| 75 | 75,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
About the units
What is a gauss?
The CGS unit of magnetic flux density — exactly 10⁻⁴ tesla, so 1 T = 10,000 G. Still widely used for magnet ratings and Earth's field (~0.5 G).
What is a milligauss?
One-thousandth of a gauss (10⁻⁷ T). EMF meters and power-line field measurements are usually quoted in milligauss.
Frequently asked questions
How many milligauss are in 1 gauss?
1 gauss (G) = 1000 milligauss (mG).
What is the formula to convert gauss to milligauss?
milligauss = gauss × 1000 — multiply the gauss value by 1000.
How do I convert G to mG without a calculator?
Multiply by 1000 for a close estimate. Exact factor: 1 G = 1000 mG.
Is this G-to-mG converter accurate and private?
Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.