Magnetic Field Strength Converter

Use this tool to convert between different units of magnetic field strength, such as Ampere/meter, Oersted, and more.

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Common Magnetic Field Strength Conversions

A/m to Oe A/m → Oe
kA/m to A/m kA/m → A/m
Oe to A/m Oe → A/m
A/m to kA/m A/m → kA/m

What is Magnetic Field Strength Conversion?

Magnetic field strength conversion is the process of converting measurements of magnetic field intensity from one unit to another. Our converter helps switch between SI units (amperes per meter) and CGS units (oersteds) used in physics and engineering.

Common units include amperes per meter (A/m), kiloamperes per meter (kA/m), and oersteds (Oe). These conversions are essential for electromagnetism, magnetic material analysis, solenoid design, and geophysics.

Simply enter your value in the "From" field, select the original unit, choose your target unit in the "To" field, and the converter will instantly display the converted result along with the conversion formula.

Magnetic Field Strength Conversion Examples

Solenoid Example

Electromagnet field calculations:

  • 1000 A/m = 12.57 Oe
  • 100 A/m = 1.257 Oe
  • 10 kA/m = 10,000 A/m

Earth's Field Example

Geomagnetic field measurements:

  • Earth's field ≈ 50 A/m ≈ 0.63 Oe
  • 25 A/m ≈ 0.31 Oe
  • 79.6 A/m ≈ 1 Oe

Industrial Magnet Example

Strong magnetic field applications:

  • 100 kA/m = 100,000 A/m
  • 50,000 A/m ≈ 628 Oe
  • 1 kA/m = 1000 A/m

Frequently Asked Questions

How many oersteds in an A/m?

One ampere per meter equals approximately 0.01257 oersteds (1/79.577). This conversion bridges SI and CGS unit systems for magnetic field strength measurements.

How do I convert kA/m to A/m?

To convert kiloamperes per meter to amperes per meter, multiply by 1000. For example, 5 kA/m × 1000 = 5000 A/m. This is used for high-intensity magnetic field applications.

What is the difference between H and B fields?

Magnetic field strength (H, measured in A/m) is the external field, while magnetic flux density (B, in tesla) includes material effects. B = μH, where μ is the magnetic permeability.

How many A/m in one oersted?

One oersted equals approximately 79.577 amperes per meter. This conversion is commonly needed when working with older equipment or literature using CGS units.

What is the formula for Oe to A/m conversion?

To convert oersteds to amperes per meter, multiply by 79.577. For example, 2 Oe × 79.577 = 159.15 A/m. This conversion is essential for magnetics research and design.