Milligauss to microteslas

Type a value in milligauss to see it in microteslas straight away, or type in the second box to convert back.

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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.

How to use it

  1. Type the value in the milligauss box.
  2. Read the result in microteslas as you type, and pick the precision you need.
  3. Swap the direction to convert back, or copy the result.

How it is calculated

µT = mG × 0.1

Multiply the value in milligauss by 0.1 to get microteslas.

Example

To convert 25 mG to microteslas: 25 × 0.1 = 2.5 µT.

Conversion table

Milligauss (mG)Microteslas (µT)
10.1
20.2
30.3
50.5
101
202
252.5
505
10010
25025
50050
1,000100

About the units

Milligauss
A milligauss is one thousandth of a gauss, exactly 0.1 microtesla, the scale many household EMF meters show.
Microtesla
A microtesla is exactly one millionth of a tesla, used for the Earth's field and fields around electrical appliances.

Limits and caveats

  • Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
  • Both unit factors are exact by their official definitions.

Questions about this tool

How many microteslas are in one milligauss?

1 mG = 0.1 µT exactly.

How do I convert milligauss to microteslas?

Use µT = mG × 0.1. For example, 25 mG = 2.5 µT.

How many milligauss are in one microtesla?

1 µT = 10 mG.

How many gauss are in one tesla?

One tesla is exactly 10000 gauss, so a 1.5 tesla MRI scanner is 15000 gauss.

How strong is the Earth's magnetic field?

At the surface it ranges from about 25 to 65 microteslas depending on location, roughly 0.25 to 0.65 gauss.