Magnetic Flux Density Converter

Convert magnetic flux density values among common SI, metric and customary units. Magnetic flux density describes magnetic flux per area. One tesla equals 10,000 gauss.

ValueSigned values are supported; scientific notation is accepted.Convert fromTesla (T)Millitesla (mT)Microtesla (µT)Gauss (G)Convert toTesla (T)Millitesla (mT)Microtesla (µT)Gauss (G)

Convert

Converted value10000 G

SI-base value1 T

Multiply by10000

The displayed results apply to the default example. Enable JavaScript to convert other values.

How to use this converter

1. Enter the magnetic flux density value.
2. Select its current unit and the unit you want.
3. Select Convert. The page shows the converted value, the SI-base value and the direct multiplication factor.

Conversion formula

Converted value = entered value × source-to-SI factor ÷ target-to-SI factor.

Every option is represented by its factor to tesla (T). This one-base method keeps reciprocal conversions consistent. Calculations run in your browser, and old results are hidden when an input changes or validation fails.

Worked example

Convert 1 T to G. Multiply by 10000; the result is 10000 G. The same input equals 1 T in the SI-base unit.

Accuracy and limitations

This converts field units, not exposure limits, shielding requirements or magnet safety. Strong fields can affect medical devices and ferromagnetic objects.

The calculator retains more digits internally than it displays. Round the final value to the precision supported by your measurement. Very large and very small answers may use scientific notation.

Frequently asked questions

How many gauss are in one tesla?

One tesla equals exactly 10,000 gauss.

Can I reverse the conversion?

Yes. Swap the From and To selections. Because both units use the same SI base, the reverse factor is the reciprocal of the forward factor.

Why was my entry rejected?

Use digits with an optional decimal point or scientific notation. Blank values, commas, fractions, words and non-finite entries are rejected. Negative values are allowed when they express direction or polarity.

Review notes and sources

Reviewed October 4, 2026. The conversion factors, default example, zero or signed boundary behavior, invalid-input handling and recovery after an error were checked. Factors follow SI definitions and published conversion guidance from the NIST Guide to the SI and the BIPM SI Brochure. Explanations and examples are original.

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