Field Strength Converter
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)
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) to Ampere/meter (A/m) Conversion Table
| Oersted (Oe) [oe] | Ampere/meter (A/m) [am] |
|---|---|
| 0.01 oe | 0.7957747 am |
| 0.1 oe | 7.957747 am |
| 1 oe | 79.57747 am |
| 2 oe | 159.15494 am |
| 3 oe | 238.73241 am |
| 5 oe | 397.88735 am |
| 10 oe | 795.7747 am |
| 20 oe | 1591.5494 am |
| 50 oe | 3978.8735 am |
| 100 oe | 7957.747 am |
| 1000 oe | 79577.47 am |
How to Convert Oersted (Oe) to Ampere/meter (A/m)
1 oe = 79.57747 am
1 am = 0.01256637 oe
Example: convert 15 oe to am:
15 oe = 15 × 79.57747 am = 1193.66205 am
Did You Know?
- 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!
- Did you know? Ampere per meter (A/m) measures the actual magnetic force produced by an electric current flowing through a wire or coil.