Convert magnetic field strength (H) between ampere/metre, ampere/centimetre and oersted.
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Magnetic Field Strength Converter
Magnetism • 6 units
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Enter a value to convert
Result
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Conversion Factor
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In A/m
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Visual Comparison
All Units
How to Use the Magnetic Field Strength Converter
Enter a value — type any number. Invalid text and symbols are blocked automatically.
Select From and To units — choose the units to convert between.
Read the animated result — the converted value, factor, and full reference table update instantly.
Use Swap (⇄) — reverse the conversion in one click.
Why Use This Magnetic Field Strength Converter
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Accurate Standards
Built on internationally recognised SI and standards-body conversion factors for dependable results.
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Instant & Animated
Results update live as you type, with a clear visual breakdown across every unit at once.
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100% Private
Everything runs in your browser — no account, no uploads, nothing leaves your device.
Common Magnetic Field Strength Converter Values
Quick reference — 1 Ampere/meter (A/m) is equal to:
Ampere/centimeter
A/cm
0.01
Kiloampere/meter
kA/m
0.001
Oersted
Oe
0.0125663709
Ampere-turn/meter
At/m
1
Ampere-turn/inch
At/in
0.0253999992
Magnetic Field Strength Converter FAQ
H is magnetic field strength (A/m or oersted); B is magnetic flux density (tesla or gauss). They are related by the material's permeability. This tool converts H.