Ampere per meter (A/m)
SI unit of magnetic field strength (H) and of linear current density.
What is an ampere per meter?
- Symbol
- A/m
- Quantity
- Magnetic Field Strength
- Unit system
- SI
- Definition
- SI unit of magnetic field strength (H) and of linear current density.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
Used in magnetic materials testing, electromagnetic compatibility work and field exposure measurements.
Ampere per meter in other magnetic field strength units
- 1 A/m = 0.01 A/cmAmpere per meter to Ampere per centimeter converter
- 1 A/m = 0.0254 A/inAmpere per inch
- 1 A/m = 0.001 kA/mKiloampere per meter
- 1 A/m ≈ 0.01256637061 OeAmpere per meter to Oersted converter
- 1 A/m ≈ 0.00001256637061 kOeKilooersted
Ampere per meter quick reference
| Ampere per meter | Ampere per centimeter | Oersted | Ampere per inch |
|---|---|---|---|
| 1 A/m | = 0.01 A/cm | ≈ 0.01256637061 Oe | = 0.0254 A/in |
| 10 A/m | = 0.1 A/cm | ≈ 0.1256637061 Oe | = 0.254 A/in |
| 100 A/m | = 1 A/cm | ≈ 1.256637061 Oe | = 2.54 A/in |
| 1000 A/m | = 10 A/cm | ≈ 12.56637061 Oe | = 25.4 A/in |
Where the ampere per meter fits
The next larger magnetic field strength unit is the ampere per inch (A/in). 1 A/m = 0.0254 A/in, and 1 A/in ≈ 39.37007874 A/m.
Frequently asked questions
- How many amperes per centimeter are in one ampere per meter?
- One ampere per meter = 0.01 A/cm (amperes per centimeter).
- How many oersteds are in one ampere per meter?
- One ampere per meter ≈ 0.01256637061 Oe (oersteds).
- How many amperes per inch are in one ampere per meter?
- One ampere per meter = 0.0254 A/in (amperes per inch).