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    1. Blog
    2. Unit Conversion
    3. Magnetic Field Converter: Convert Between Tesla, Gauss, Oersted, and More
    Unit ConversionApril 5, 20265 min read

    Magnetic Field Converter: Convert Between Tesla, Gauss, Oersted, and More

    Learn how to convert magnetic field measurements between tesla, gauss, oersted, and ampere per meter. Includes formulas and real-world applications.

    Published April 5, 2026 · Updated June 19, 2026
    AM

    Achyutananda Meher

    Founder of Measurely

    Magnetic field visualization with iron filings

    Table of Contents

    • Introduction
    • Conversion Formulas and Factors
    • How to Use the Converter
    • Real-World Examples
    • Common Applications
    • Tips for Accurate Conversions
    • Conclusion

    Introduction

    Magnetic field measurements are crucial in physics, electrical engineering, medical imaging, and materials science. Our magnetic field converter handles all standard units.

    Conversion Formulas and Factors

    The tesla is the SI unit for magnetic flux density:

    1 T = 10,000 G (gauss) 1 G = 0.0001 T (10^-4 T) 1 A/m = 0.01256637 Oe (oersted) 1 Oe = 79.57747 A/m 1 T = 1 Wb/m^2 (weber per square meter) 1 gamma = 10^-9 T = 10^-5 G

    Key relationship: B = u0 x H

    Where B is magnetic flux density (T), H is magnetic field strength (A/m), and u0 is the permeability of free space.

    How to Use the Converter

    Our magnetic field converter supports all common units. For example, 1 T = 10,000 G.

    Real-World Examples

    Medical Imaging: An MRI machine operates at 1.5 T to 3 T. In gauss, that is 15,000 G to 30,000 G. Earth's Magnetic Field: Approximately 0.5 G = 50 uT (microtesla). Lab Magnets: A strong neodymium magnet has about 1.2 T = 12,000 G.

    Common Applications

    • Medical Imaging: MRI scanners use tesla ratings
    • Geophysics: Measuring Earth's magnetic field in gauss or nanotesla
    • Electrical Engineering: Motor and generator design
    • Materials Science: Characterizing magnetic materials
    • Particle Physics: Accelerator magnets rated in tesla

    Tips for Accurate Conversions

    1. 1. Distinguish between magnetic flux density (B in T) and magnetic field strength (H in A/m)
    2. 2. 1 T is a very strong field � Earth's field is about 50 uT
    3. 3. Gauss is still commonly used in some engineering fields

    Conclusion

    Magnetic field conversions are essential in medical imaging, physics, and electrical engineering. Our magnetic field converter provides instant, accurate conversions. For more tools, see the complete guide to unit converters.

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    AM

    About Achyutananda Meher

    Founder of Measurely

    Achyutananda Meher is the founder of Measurely. He created the platform to make unit conversions simple and intuitive for professionals and everyday users.

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    Frequently Asked Questions

    What is the difference between tesla and gauss?

    1 T = 10,000 G. Tesla is SI; gauss is CGS.

    How strong is Earth's magnetic field?

    Approximately 0.5 gauss (50 microtesla).

    What is the difference between B and H in magnetism?

    B is magnetic flux density (T); H is magnetic field strength (A/m).

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    On This Page

    • Introduction
    • Conversion Formulas and Factors
    • How to Use the Converter
    • Real-World Examples
    • Common Applications
    • Tips for Accurate Conversions
    • Conclusion