Magnetic Flux Density Converter

Convert magnetic flux density between tesla, gauss and supported tesla prefix scales.

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How this works

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Convert value controls

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A plain number such as 1 or 1.6e-3. A negative value is read as flux density in the opposite direction.

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How to use Magnetic Flux Density Converter

  1. Enter the magnetic flux-density value.
  2. Choose the source and destination units.
  3. Convert and copy the value with its B-field unit.

Example: Magnetic Flux Density Converter

Convert a tesla reading to gauss.

You add
Value: 1. From: T. To: G.
You get
1 T = 10000 G.

Options

Flux density unit
Tesla and gauss express magnetic flux density. A gamma here is one nanotesla; it is not a separate field measurement.
Decimal places
Flux density in tesla and gauss differs in numerical scale. The 0, 2, 4, 6 or 8 display places round the chosen unit and do not add information about the magnetic measurement.

Supported inputs and limits

Magnetic flux density B only. Magnetic field strength H in A/m or oersted needs a material relationship and is outside the supported units. No exposure or magnet-performance assessment is made. Values accept at most 64 characters, 40 significant digits, 20 fractional places and magnitude 10¹⁸. Scientific notation has at most two exponent digits. Display rounding offers 0, 2, 4, 6 or 8 decimal places; small nonzero results stay visible.

Where your input is processed

This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.

Flux density and field strength differ

One tesla equals 10000 gauss. Flux density differs from magnetic field strength, so a value in A/m needs a material relationship outside this tool. Preserve the physical quantity named by the source.

Questions about Magnetic Flux Density Converter

Can this convert tesla to amperes per metre?

No. Those describe B and H respectively. Their relationship depends on the material and conditions.

Does a negative value work?

Yes. Its sign can describe direction along your selected axis, which the conversion keeps.

Are gauss and tesla the same quantity?

Both are magnetic flux-density units. One tesla equals ten thousand gauss.

Project manager: Tony Hines · Content updated 4 October 2026 · Report a problem