Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Millitesla to Gauss
Convert mT to G instantly, then review the formula, assumptions, and rounding guidance.
Magnetic unitsInstant result
Decimals
Formula result = input × 0.001 ÷ 0.0001. 1 mT = 10 G
Common examples
One value, several units
Tesla0.001 T
Microtesla1,000 µT
Gauss10 G
Conversion table
| mT | G |
|---|---|
| 1 mT | 10 G |
| 2 mT | 20 G |
| 5 mT | 50 G |
| 10 mT | 100 G |
| 25 mT | 250 G |
| 50 mT | 500 G |
| 100 mT | 1,000 G |
Conversion chart
1 mT10 G
5 mT50 G
10 mT100 G
25 mT250 G
50 mT500 G
Worked example
1 tesla equals exactly 10,000 gauss.
Unit definition
Millitesla (mT) One millitesla equals 0.001 tesla.
Unit history
Millitesla is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert mT to tesla.
3. Convert the base value to G and apply your display precision.
Understand the result before using it
Millitesla to Gauss converts a value measured in Millitesla (mT) into the equivalent value in Gauss (G). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 0.001 ÷ 0.0001
Assumptions
- Millitesla and Gauss represent the same magnetic flux density quantity.
- The input is expressed in mT; the output is expressed in G.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 mT = 10 G. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a mT measurement in a document that expects G.
- Compare a millitesla value with a value reported in gauss.
- Check the mT-to-G arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Do not confuse mT with another unit that has a similar name or symbol.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Millitesla to Gauss?
result = input × 0.001 ÷ 0.0001 Using the displayed relationship, 1 mT equals 10 G.
How many Gauss are in one Millitesla?
One Millitesla is 10 Gauss. The displayed digits may be rounded.
Can I reverse the mT to G conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts G back to mT.
Is the Millitesla to Gauss result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.