Convert Amperes per Metre to Oersteds (A/m to Oe)
1 ampere per metre (A/m) = 0.01256637061 oersteds (Oe). 1 Oe = 79.57747155 A/m. Example: 1000 A/m = 1000 × 0.01256637061 = 12.56637061 Oe.
Also searched as amperes per metre to Oe, amperes per metre in Oe, amperes per metre into oersteds, A/m to Oe, A/m in oersteds, A/m into oersted, ampere per metre to oersted, A/m to oersteds converter, amperes per meter to oersteds and how many oersteds in an ampere per metre.
1 A/m = 0.01256637061 Oe
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk ampere per metre to oersted converter to paste a column from Excel.
How to Convert Ampere per Metre to Oersted
- 1 A/m = 0.01256637061 Oe
- 1 Oe = 79.57747155 A/m
- Example: convert 1000 A/m to Oe: 1000 A/m = 1000 × 0.01256637061 Oe = 12.56637061 Oe
Formula
Oe = A/m × 0.01256637061436
or Oe = A/m ÷ 79.57747154595
Derivation from SI units:
- The SI unit of magnetic field strength H
- 1 Oe = 1000/(4π) A/m ≈ 79.577 A/m (exact by definition)
Both units are defined exactly, so the factor is exact. Ampere per Metre definition: ampere per metre; Oersted definition: oersted.
Worked examples
- 1000 A/m is 12.56637061 Oe.
1000 A/m × 0.01256637061 = 12.56637061 Oe - 80 A/m is 1.005309649 Oe, close to 1 Oe.
80 A/m × 0.01256637061 = 1.005309649 Oe
Ampere per Metre to Oersted conversion table
| Amperes per Metre (A/m) | Oersteds (Oe) |
|---|---|
| 1 A/m | 0.01256637061 Oe |
| 10 A/m | 0.1256637061 Oe |
| 40 A/m | 0.5026548246 Oe |
| 80 A/m | 1.005309649 Oe |
| 100 A/m | 1.256637061 Oe |
| 400 A/m | 5.026548246 Oe |
| 1000 A/m | 12.56637061 Oe |
| 8000 A/m | 100.5309649 Oe |
| 79577 A/m | 999.9940744 Oe |
| 800000 A/m | 10053.09649 Oe |
Where it's used
SI field strengths in A/m are converted to oersted for comparison with older magnetic literature and hysteresis data. Multiply by 4π/1000, about 0.012566.
Ampere per Metre to other magnetic field strength units
| Conversion | 1 A/m equals |
|---|---|
| ampere per metre to oersted | 0.01256637061 Oe |
| ampere per metre to kiloampere per metre | 0.001 kA/m |
| ampere per metre to kilooersted | 0.00001256637061 kOe |
| ampere per metre to ampere per centimetre | 0.01 A/cm |
Frequently asked questions
How many oersted is 1 A/m?
1 A/m = 4π/1000 Oe ≈ 0.0125664 Oe.
How many oersteds are in 1 ampere per metre?
1 A/m = 0.01256637061 Oe.
How do I convert amperes per metre to oersteds?
Multiply the value in A/m by 0.01256637061, or divide it by 79.57747155. For example, 1000 A/m × 0.01256637061 = 12.56637061 Oe.
Is the A/m to Oe conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "oersted".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Amperes per Metre to Oersteds (A/m to Oe). Retrieved October 25, 2026, from https://scientificconverters.com/magnetic-field-strength/amperes-per-meter-to-oersted/
IEEE
Scientific Converters, "Convert Amperes per Metre to Oersteds (A/m to Oe)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/magnetic-field-strength/amperes-per-meter-to-oersted/