Free Online Magnetic Field & Induction Converter

Free Online Magnetic Field & Induction Conversion Tool

Our comprehensive Magnetic Field and Induction Converter is an essential tool for physicists, electrical engineers, researchers, and anyone working with magnetic fields. This powerful converter allows you to instantly convert between dozens of magnetic units including tesla, gauss, oersted, weber per square meter, maxwell per square centimeter, and many more. Whether you're designing electromagnetic systems, conducting research, working with MRI technology, or studying magnetism, this tool provides accurate conversions with real-time results.

How to Use This Magnetic Field Converter (Step-by-Step):

• Enter Value: Input the numerical magnetic field value you want to convert in the "Magnetic Value" field
• Select Source Unit: Choose the unit of your input value from the dropdown menu (e.g., tesla, gauss, oersted)
• View Results: Instantly see the converted values in all major magnetic units in the results panel
• Additional Actions: Use the buttons to copy results, swap units, or reset the converter for new calculations

Real-Life Application Examples:

For Electrical Engineering: Convert between tesla and gauss when designing transformers, motors, and generators. A typical transformer core might operate at 1.5-1.7 tesla (15,000-17,000 gauss) before saturation.

For Medical Imaging: Convert magnetic field units when working with MRI systems. Clinical MRI scanners typically operate at 1.5-3.0 tesla (15,000-30,000 gauss), while research scanners can reach 7-11 tesla.

For Physics Research: Convert between SI and CGS units when analyzing experimental data or reading scientific literature from different eras and regions that use different measurement systems.

For Industrial Applications: Convert magnetic field measurements for quality control in manufacturing permanent magnets, magnetic separators, and magnetic recording media.

Common Magnetic Unit Definitions:

• Tesla (T): SI unit of magnetic flux density - defined as one weber per square meter
• Gauss (G): CGS unit of magnetic flux density - named after Carl Friedrich Gauss
• Oersted (Oe): CGS unit of magnetic field strength - named after Hans Christian Ørsted
• Weber per square meter (Wb/m²): Equivalent to tesla - SI unit of magnetic flux density
• Maxwell per square centimeter (Mx/cm²): Equivalent to gauss - CGS unit of magnetic flux density
• Millitesla (mT): 0.001 tesla - commonly used for moderate magnetic fields
• Microtesla (µT): 0.000001 tesla - used for weak magnetic fields like Earth's field

Who Should Use This Magnetic Field Converter?

• Electrical Engineers: Essential for designing motors, generators, transformers, and electromagnetic devices
• Physicists & Researchers: Perfect for experimental work, data analysis, and scientific publications
• Medical Professionals: Ideal for understanding MRI specifications and magnetic safety limits
• Industrial Engineers: Useful for quality control in magnet manufacturing and magnetic applications
• Students & Educators: Valuable for physics and engineering courses dealing with electromagnetism
• Hobbyists & DIY Enthusiasts: Great for projects involving magnets, electromagnets, and magnetic sensors

Frequently Asked Questions

What's the difference between magnetic flux density and magnetic field strength?
Magnetic flux density (B, measured in tesla or gauss) describes the strength of the magnetic field, while magnetic field strength (H, measured in A/m or oersted) describes the magnetizing field. In vacuum, B = μ₀H, where μ₀ is the permeability of free space.

How are tesla and gauss related?
1 tesla = 10,000 gauss. This conversion factor comes from the relationship between the SI and CGS systems of units for magnetic flux density.

When should I use oersted instead of gauss?
Use gauss for magnetic flux density (B field) and oersted for magnetic field strength (H field). In CGS units for non-magnetic materials, 1 oersted = 1 gauss, but this relationship changes for magnetic materials.

How accurate are the conversions?
Our converter uses precise conversion factors based on international standards. For most scientific and engineering purposes, the accuracy is more than sufficient.

Can I convert between magnetic flux and magnetic flux density?
Magnetic flux (measured in weber or maxwell) is the total magnetic field through an area, while magnetic flux density (tesla or gauss) is flux per unit area. You need to know the area to convert between them.

Magnetic Field Conversion Factors Reference:

For quick reference, here are some key conversion factors:

• 1 tesla = 10,000 gauss = 1,000 millitesla = 1,000,000 microtesla
• 1 gauss = 0.0001 tesla = 0.1 millitesla = 100 microtesla
• 1 millitesla = 0.001 tesla = 10 gauss = 1,000 microtesla
• 1 microtesla = 0.000001 tesla = 0.01 gauss = 0.001 millitesla
• 1 oersted = 79.5774715 A/m (SI) ≈ 1 gauss (in CGS for vacuum/air)
• 1 weber/m² = 1 tesla
• 1 maxwell/cm² = 1 gauss

Typical Magnetic Field Values in Practice:

• Interstellar Space: 0.1-10 nT (0.001-0.1 mG)
• Earth's Magnetic Field: 25-65 µT (0.25-0.65 G)
• Sunspot: 0.1-0.3 T (1,000-3,000 G)
• Refrigerator Magnet: 5-10 mT (50-100 G)
• Speaker Magnet: 0.1-1.0 T (1,000-10,000 G)
• Neodymium Magnet: 1.0-1.4 T (10,000-14,000 G)
• MRI Scanner: 0.2-7.0 T (2,000-70,000 G)
• Pulsed Laboratory Magnet: Up to 100 T (1,000,000 G)

Magnetic Unit Systems Comparison:

• SI System: Tesla (T), Weber (Wb), Ampere/meter (A/m)
• CGS System: Gauss (G), Maxwell (Mx), Oersted (Oe)
• Conversion: 1 T = 10⁴ G, 1 Wb = 10⁸ Mx, 1 A/m = 4π×10⁻³ Oe
• SI system is used internationally in most scientific and engineering contexts
• CGS system is still used in some specialized fields and older literature

Safety Considerations:

• Static Fields < 2 T: Generally safe for brief exposure
• Static Fields 2-8 T: Potential biological effects, professional use only
• Static Fields > 8 T: Significant safety concerns, restricted access
• Always follow safety guidelines when working with strong magnetic fields
• Consider effects on medical implants, magnetic media, and electronic devices