To convert milligauss to kilogauss, multiply by 1e-06. 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.
Kilogauss rates permanent magnets: a strong neodymium magnet is around 12 to 14 kG at the pole face. Milligauss is the unit on domestic EMF meters, where readings near household wiring are typically a few mG.
The tables underneath give both a plain step-by-step lookup and a list of real quantities expressed in kilogauss, so you can sanity-check whether your answer is a plausible size.
The formula
milligauss- The amount you are converting, in milligauss
1e-06- The exact number of kilogauss in one milligauss
kilogauss- The converted result
How it works, step by step
- Enter the value in milligauss.
- It is multiplied by 1e-06, the exact factor between the two units.
- The answer is shown in kilogauss, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Speaker gap: 1e+07 mG in kilogauss
Speaker gap comes to about 1e+07 mG. Multiplying by the factor: 1e+07 × 1e-06 = 10 kG. Dividing the answer back by 1e-06 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
Near household wiring: 1 mG in kilogauss
Take near household wiring, roughly 1 mG. The conversion is a single multiplication — 1 × 1e-06 — giving 1e-06 kG. Because the relationship is proportional, doubling the input doubles the answer to 2e-06 kG.
How to read your score
Frequently asked questions
How many kilogauss are in one milligauss?
Exactly 1e-06. 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 milligauss to kilogauss?
kilogauss = milligauss × 1e-06. Reversed, milligauss = kilogauss ÷ 1e-06, which is the same as multiplying by 1,000,000.
Which is the bigger unit, the milligauss or the kilogauss?
The kilogauss. One milligauss is only 1e-06 of a kilogauss, so it takes 1e+06 milligauss to make one kilogauss.
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 milligauss?
Milligauss is the unit on domestic EMF meters, where readings near household wiring are typically a few mG.
What is a kilogauss?
Kilogauss rates permanent magnets: a strong neodymium magnet is around 12 to 14 kG at the pole face.
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.
Milligauss to kilogauss reference tables
| Milligauss | Kilogauss |
|---|---|
| 0.5 mG | 5e-07 kG |
| 1 mG | 1e-06 kG |
| 2 mG | 2e-06 kG |
| 3 mG | 3e-06 kG |
| 5 mG | 5e-06 kG |
| 10 mG | 1e-05 kG |
| 20 mG | 2e-05 kG |
| 25 mG | 2.5e-05 kG |
| 50 mG | 5e-05 kG |
| 75 mG | 7.5e-05 kG |
| 100 mG | 0.0001 kG |
| 250 mG | 0.00025 kG |
| 500 mG | 0.0005 kG |
| 1000 mG | 0.001 kG |
| 5000 mG | 0.005 kG |
Exact factor: 1 milligauss = 1e-06 kilogauss.
| Quantity | mG | kG |
|---|---|---|
| Earth's field | 500 mG | 0.0005 kG |
| Fridge magnet | 5e+04 mG | 0.05 kG |
| Speaker gap | 1e+07 mG | 10 kG |
| MRI scanner | 3e+07 mG | 30 kG |
| Neodymium magnet, pole face | 1.3e+07 mG | 13 kG |
| Near household wiring | 1 mG | 1e-06 kG |
Published reference values, converted with the same factor this page uses.