Field Strength Converter
Ampere/meter (A/m)
Definition: Ampere per meter is the SI unit of magnetic field strength. It represents the magnetic field produced by a current of one ampere flowing through a straight conductor of infinite length.
History/origin: Established as part of the metric system standardization to create a direct link between electrical current and the magnetic force it generates.
Current use: This is the global standard unit used in physics, electrical engineering, and for specifying the strength of electromagnetic coils.
Oersted (Oe)
Definition: The oersted is the unit of magnetic field strength in the CGS (centimeter-gram-second) system of units.
History/origin: Named in honor of Hans Christian Ørsted. It was the primary unit of magnetic strength before the international SI system (A/m) became the official standard.
Current use: Still widely used in North America and in the field of permanent magnet manufacturing and materials science.
Ampere/meter (A/m) to Oersted (Oe) Conversion Table
| Ampere/meter (A/m) [am] | Oersted (Oe) [oe] |
|---|---|
| 0.01 am | 0.00012566 oe |
| 0.1 am | 0.00125664 oe |
| 1 am | 0.01256637 oe |
| 2 am | 0.02513274 oe |
| 3 am | 0.03769911 oe |
| 5 am | 0.06283185 oe |
| 10 am | 0.12566371 oe |
| 20 am | 0.25132742 oe |
| 50 am | 0.62831854 oe |
| 100 am | 1.25663709 oe |
| 1000 am | 12.56637086 oe |
How to Convert Ampere/meter (A/m) to Oersted (Oe)
1 am = 0.01256637 oe
1 oe = 79.57747 am
Example: convert 15 am to oe:
15 am = 15 × 0.01256637 oe = 0.18849556 oe
Did You Know?
- Did you know? Ampere per meter (A/m) measures the actual magnetic force produced by an electric current flowing through a wire or coil.
- The Oersted (Oe) is named after Hans Christian Ørsted, who accidentally discovered in 1820 that an electric current could move a compass needle, proving electricity and magnetism are linked!