Conversion method
Current per width (A/m), often called sheet current density.
A/cm = x × 0.01
10 A/m = 0.1 A/cm.
| A/m | A/cm |
|---|---|
| 1 | 0.01 |
| 5 | 0.05 |
| 10 | 0.1 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |
Unit definitions and sources
Current per width (A/m), often called sheet current density.
| Unit and system | Use | Definition | Relationship |
|---|---|---|---|
| Ampere per meter (A/m); si | Common units | Ampere per meter: base (a-m) = value × 1. Common use: Linear Current Density. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Ampere per centimeter (A/cm); si | Common units | Ampere per centimeter: base (a-m) = value × 100. Common use: Linear Current Density. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Ampere per millimeter (A/mm); si | Specialist units | Ampere per millimeter: base (a-m) = value × 1000. Common use: Linear Current Density. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Milliampere per meter (mA/m); si | Specialist units | Milliampere per meter: base (a-m) = value × 0.001. Common use: Linear Current Density. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Ampere/inch (A/(in)); other | Specialist units | ampere/inch = 39.37007874015748 a-m, derived from the component SI/customary definitions. Common use: Linear Current Density. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
Sources: NIST: SP 811 Appendix B.8: conversion factors; BIPM: SI prefixes
Precision of linear current density conversions
All 5 linear current density units convert through Ampere per meter (A/m). 5 have an exact defined relationship to the base unit and 0 are conventional or measured values. Results and the tables on this page come from the same engine, so a table value can be checked against the converter directly.
Standard display shows up to six decimal places, switching to scientific notation for very large or small values. Calculation uses JavaScript binary floating point independently of display rounding, so extra digits are not a claim about measurement accuracy. Each unit lists its own source; a citation records where the definition comes from, not an independent review. See Conversion methodology for the review and correction process.