Milliteslas to teslas

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

Loading the tool…

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 milliteslas box.
  2. Read the result in teslas as you type, and pick the precision you need.
  3. Swap the direction to convert back, or copy the result.

How it is calculated

T = mT × 0.001

Multiply the value in milliteslas by 0.001 to get teslas.

Example

To convert 25 mT to teslas: 25 × 0.001 = 0.025 T.

Conversion table

Milliteslas (mT)Teslas (T)
10.001
20.002
30.003
50.005
100.01
200.02
250.025
500.05
1000.1
2500.25
5000.5
1,0001

About the units

Millitesla
A millitesla is exactly one thousandth of a tesla, which is 10 gauss.
Tesla
The SI unit of magnetic flux density, equal to one weber per square meter.

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 teslas are in one millitesla?

1 mT = 0.001 T exactly.

How do I convert milliteslas to teslas?

Use T = mT × 0.001. For example, 25 mT = 0.025 T.

How many milliteslas are in one tesla?

1 T = 1,000 mT.

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.