Magnetism Conversion Chart
Quick-reference magnetism conversion chart. The tables below compare the most common units side by side. Download the free PDF for offline and printable use.
Standards and method
Values are calculated from the shared conversion-factor library. Exact defined relationships are preserved; displayed results are rounded only for readability.
Maintained by Miguel Coelho. Updated . See our editorial policy.
Printable magnetism conversion chart
Tesla and gauss, A/m and oersted, webers and maxwells. Includes the exact definition, formulas, a worked example and sources. Conversion values are checked against the defining constants, and reference data is cited to its source, before the PDF is published.
Free to print, share and use in teaching materials with attribution (CC BY 4.0).
Magnetism Conversion Table
Magnetic flux density
| Unit | per 1 T |
|---|---|
| Tesla (T) | 1 T |
| Gauss (G) | 10000 G |
| Weber per Square Meter (Wb/m²) | 1 Wb/m² |
| Maxwell per Square Centimeter (Mx/cm²) | 10000 Mx/cm² |
Magnetic field strength
| Unit | per 1 A/m |
|---|---|
| Ampere per Meter (A/m) | 1 A/m |
| Kiloampere per Meter (kA/m) | 0.001 kA/m |
| Ampere per Centimeter (A/cm) | 0.01 A/cm |
| Oersted (Oe) | 0.0125664 Oe |
Magnetic flux
| Unit | per 1 Wb |
|---|---|
| Weber (Wb) | 1 Wb |
| Maxwell (Mx) | 100000000 Mx |
| Volt Second (V⋅s) | 1 V⋅s |
Values are calculated from the shared conversion-factor library. Exact defined relationships are preserved; displayed results are rounded only for readability.
Full magnetism conversion chart
Tesla and gauss, A/m and oersted, webers and maxwells. These are the same tables as the printable PDF. For: Physics students, engineers, MRI and magnet specialists.
- Exact definition
- 1 T = 10,000 G; 1 Oe = 1000/(4π) A/m; 1 Wb = 10⁸ Mx
- Formula
- G = T × 10,000; A/m = Oe × 79.5775
- Reverse
- T = G ÷ 10,000; Oe = A/m ÷ 79.5775
- Worked example
- A 3 T MRI scanner = 30,000 G
- Rounding
- Values use 4 significant figures. In air, B (gauss) and µ0·H (oersted) are numerically equal.
Magnetic flux density: tesla to gauss
| Tesla (T) | Gauss (G) |
|---|---|
| 1 × 10⁻⁵ | 0.1 |
| 5 × 10⁻⁵ | 0.5 |
| 1 × 10⁻⁴ | 1 |
| 5 × 10⁻⁴ | 5 |
| 0.001 | 10 |
| 0.005 | 50 |
| 0.01 | 100 |
| 0.05 | 500 |
| Tesla (T) | Gauss (G) |
|---|---|
| 0.1 | 1,000 |
| 0.5 | 5,000 |
| 1 | 10,000 |
| 1.5 | 15,000 |
| 3 | 30,000 |
| 7 | 70,000 |
| 11.7 | 117,000 |
Magnetic field strength: oersted to A/m
| Oersted (Oe) | Amperes per metre (A/m) | Kiloamperes per metre (kA/m) |
|---|---|---|
| 0.1 | 7.958 | 0.007958 |
| 0.5 | 39.79 | 0.03979 |
| 1 | 79.58 | 0.07958 |
| 5 | 397.9 | 0.3979 |
| 10 | 795.8 | 0.7958 |
| 50 | 3,979 | 3.979 |
| 100 | 7,958 | 7.958 |
| 500 | 39,790 | 39.79 |
| 1,000 | 79,580 | 79.58 |
| 5,000 | 397,900 | 397.9 |
| 10,000 | 795,800 | 795.8 |
Magnetic flux
| From | To | Multiply by |
|---|---|---|
| Webers (Wb) | Maxwells (Mx) | 1 × 10⁸ |
| Maxwells (Mx) | Webers (Wb) | 1 × 10⁻⁸ |
Typical magnetic flux densities
| Source | Tesla | Gauss |
|---|---|---|
| Earth's magnetic field at the surface | 25–65 µT | 0.25–0.65 G |
| Fridge magnet | ≈ 5 mT | ≈ 50 G |
| Neodymium magnet (N52, remanence) | ≈ 1.4 T | ≈ 14,000 G |
| Clinical MRI scanner | 1.5–3 T | 15,000–30,000 G |
Sources for this chart
Conversion values on this sheet are generated by the AllUnitConversions conversion library and automatically checked against the exact definitions above before the PDF is produced; reference tables are taken from the sources listed.
- BIPM SI Brochure, 9th edition — Definitions of the SI units, including the kelvin
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Related Converters & Charts
Magnetism Conversion Chart FAQs
Common questions about the magnetism conversion chart.
What does this magnetism conversion chart include?
It lists the most common magnetism units side by side with their conversion factors, plus a free printable PDF you can download for offline reference.
What exact definition is this magnetism chart based on?
1 T = 10,000 G; 1 Oe = 1000/(4π) A/m; 1 Wb = 10⁸ Mx. Formula: G = T × 10,000; A/m = Oe × 79.5775. Values use 4 significant figures. In air, B (gauss) and µ0·H (oersted) are numerically equal.
Can I download this chart as a PDF, CSV, or JSON?
Yes. Use the Download A4 PDF or US Letter PDF buttons for a printable version, or download the same tables as CSV or JSON from the links on this page.