Convert Amperes per Centimetre to Oersteds (A/cm to Oe)
1 ampere per centimetre (A/cm) = 1.256637061 oersteds (Oe). 1 Oe = 0.7957747155 A/cm. Example: 15 A/cm = 15 × 1.256637061 = 18.84955592 Oe.
Also searched as amperes per centimetre to Oe, amperes per centimetre in Oe, amperes per centimetre into oersteds, A/cm to Oe, A/cm in oersteds, A/cm into oersted, ampere per centimetre to oersted, A/cm to oersteds converter, amperes per centimeter to oersteds and how many oersteds in an ampere per centimetre.
1 A/cm = 1.256637061 Oe
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk ampere per centimetre to oersted converter to paste a column from Excel.
How to Convert Ampere per Centimetre to Oersted
- 1 A/cm = 1.256637061 Oe
- 1 Oe = 0.7957747155 A/cm
- Example: convert 15 A/cm to Oe: 15 A/cm = 15 × 1.256637061 Oe = 18.84955592 Oe
Formula
Oe = A/cm × 1.256637061436
Derivation from SI units:
- 1 A/cm = 100 A/m
- 1 Oe = 1000/(4π) A/m ≈ 79.577 A/m (exact by definition)
- 1 A/cm = 100 A/m ÷ 79.57747154595 A/m per Oe = 1.256637061436 Oe
Both units are defined exactly, so the factor is exact. Ampere per Centimetre definition: ampere per centimetre; Oersted definition: oersted.
Worked examples
- A reading of 2 A/cm converts to 2.513274123 Oe.
2 A/cm × 1.256637061 = 2.513274123 Oe - A value of 20 A/cm is 25.13274123 Oe.
20 A/cm × 1.256637061 = 25.13274123 Oe
Ampere per Centimetre to Oersted conversion table
| Amperes per Centimetre (A/cm) | Oersteds (Oe) |
|---|---|
| 0.1 A/cm | 0.1256637061 Oe |
| 0.5 A/cm | 0.6283185307 Oe |
| 1 A/cm | 1.256637061 Oe |
| 2 A/cm | 2.513274123 Oe |
| 5 A/cm | 6.283185307 Oe |
| 10 A/cm | 12.56637061 Oe |
| 20 A/cm | 25.13274123 Oe |
| 50 A/cm | 62.83185307 Oe |
| 100 A/cm | 125.6637061 Oe |
| 1000 A/cm | 1256.637061 Oe |
Where it's used
Amperes per Centimetre are used for magnetic particle inspection (tangential field, for example 20–60 A/cm), while oersteds appear in coercivity of magnets in older and US data sheets. Both measure magnetic field strength (H field) and coercivity, so the conversion is a fixed factor.
Ampere per Centimetre to other magnetic field strength units
| Conversion | 1 A/cm equals |
|---|---|
| ampere per centimetre to oersted | 1.256637061 Oe |
| ampere per centimetre to ampere per metre | 100 A/m |
| ampere per centimetre to kiloampere per metre | 0.1 kA/m |
| ampere per centimetre to kilooersted | 0.001256637061 kOe |
Frequently asked questions
How many oersteds are in 1 ampere per centimetre?
1 A/cm = 1.256637061 Oe.
How do I convert amperes per centimetre to oersteds?
Multiply the value in A/cm by 1.256637061. For example, 15 A/cm × 1.256637061 = 18.84955592 Oe.
Is the A/cm 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 Centimetre to Oersteds (A/cm to Oe). Retrieved October 25, 2026, from https://scientificconverters.com/magnetic-field-strength/amperes-per-centimeter-to-oersted/
IEEE
Scientific Converters, "Convert Amperes per Centimetre to Oersteds (A/cm to Oe)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/magnetic-field-strength/amperes-per-centimeter-to-oersted/