How many microteslas are in one tesla?

One tesla (T) equals exactly 1,000,000 microteslas (µT). This is because the prefix "micro" means 10⁻⁶, so 1 µT = 10⁻⁶ T, and therefore 1 T = 10⁶ µT.

What is the difference between a tesla and a microtesla?

A tesla is the SI base unit of magnetic flux density; a microtesla is one millionth of a tesla. Teslas are used for strong fields like MRI machines, while microteslas suit weak fields like Earth's magnetic field (~25–65 µT).

What is Earth's magnetic field in microteslas?

Earth's geomagnetic field ranges from about 25 µT near the equator to about 65 µT near the poles, which is 0.000025–0.000065 T. Microteslas are the natural unit for this scale.

Is the conversion exact?

Yes. The conversion factor is defined exactly: 1 T = 1,000,000 µT with no approximation. It is a straightforward SI prefix conversion.

What fields use microteslas vs. teslas?

Teslas describe strong fields: MRI machines (1.5–7 T), NMR spectrometers, industrial magnets. Microteslas cover weak fields: Earth's field, power line EMF measurements, sensor calibration, and magnetometer readings.

Teslas to Microteslas Converter

Name: Teslas to Microteslas Converter
Availability: InStock
Author: Nham Vu

Enter a value in teslas and instantly get the equivalent in microteslas (1 T = 1,000,000 µT).

Input

Teslas (T) Microteslas (µT)

Value to convert

Quick examples (T)

Result

Enter a value to convert

Common T → µT Reference Values

Teslas (T)	Microteslas (µT)	Context
0.000025	25	Earth's field (equator)
0.000065	65	Earth's field (poles)
0.0001	100	Typical EMF safety threshold
1	1,000,000	1 tesla (reference)
1.5	1,500,000	Clinical MRI (1.5 T)
3	3,000,000	High-field clinical MRI
7	7,000,000	Research MRI scanner

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Summary

Enter a value in teslas and instantly get the equivalent in microteslas (1 T = 1,000,000 µT).

How it works

Enter a value in teslas in the input field.
The converter multiplies by 1,000,000 (10⁶) to produce microteslas.
Result appears instantly below the input.
Use the swap button to reverse the direction (µT → T).
Copy the result with one click.

Use cases

Convert MRI scanner field strengths (typically 1.5–3 T) to microteslas for comparison.
Express Earth's geomagnetic field (~0.000025–0.000065 T) in the more readable µT scale.
Convert physics textbook values between SI magnetic units.
Check electromagnetic field compliance thresholds specified in µT.
Translate sensor datasheet values from T to µT for practical use.
Understand industrial magnet specifications across unit scales.

Frequently Asked Questions

Last updated: 2026-07-24 · Reviewed by Nham Vu