Amperes per square centimeter to amperes per square millimeter
Type a value in A/cm² to get it in A/mm² instantly.
0.04A/mm²
That's 3.3× as hard-worked as a hydrogen fuel cell, while an overhead power line is 25× higher. Through ordinary 2.5 mm² cable that is 0.1 A.
Convert the other way: A/mm² to A/cm²
What it means
How hard is the conductor working?
Wiring figures are rough guidance only. Real cable ratings depend on insulation, bundling and air temperature, so follow your local wiring rules.
The math
How to convert A/cm² to A/mm²
To convert amperes per square centimeter to amperes per square millimeter, multiply by 0.01.
Example: 4 A/cm² × 0.01 = 0.04 A/mm².
In the other direction, 1 A/mm² = 100 A/cm².
Every unit
Your current density in every unit
Tables
A/cm² to A/mm² conversion table
| A/cm² | A/mm² |
|---|---|
| 0.01 A/cm² | 0.0001 A/mm² |
| 0.03 A/cm² | 0.0003 A/mm² |
| 0.1 A/cm² | 0.001 A/mm² |
| 0.5 A/cm² | 0.005 A/mm² |
| 1 A/cm² | 0.01 A/mm² |
| 2 A/cm² | 0.02 A/mm² |
| 3 A/cm² | 0.03 A/mm² |
| 4 A/cm² | 0.04 A/mm² |
| 5 A/cm² | 0.05 A/mm² |
| 6 A/cm² | 0.06 A/mm² |
| 8 A/cm² | 0.08 A/mm² |
| 10 A/cm² | 0.1 A/mm² |
A/mm² to A/cm² conversion table
| A/mm² | A/cm² |
|---|---|
| 0.01 A/mm² | 1 A/cm² |
| 0.03 A/mm² | 3 A/cm² |
| 0.1 A/mm² | 10 A/cm² |
| 0.5 A/mm² | 50 A/cm² |
| 1 A/mm² | 100 A/cm² |
| 2 A/mm² | 200 A/cm² |
| 3 A/mm² | 300 A/cm² |
| 4 A/mm² | 400 A/cm² |
| 5 A/mm² | 500 A/cm² |
| 6 A/mm² | 600 A/cm² |
| 8 A/mm² | 800 A/cm² |
| 10 A/mm² | 1,000 A/cm² |
Quick answers
Quick answers
- How many A/mm² is 1 A/cm²?
- 1 A/cm² is 0.01 A/mm².
- How many A/mm² is 10 A/cm²?
- 10 A/cm² is 0.1 A/mm².
- How many A/mm² is 4 A/cm²?
- 4 A/cm² is 0.04 A/mm².
The units
About these units
Amperes per square centimeter (A/cm²)
Used for fuel cells, batteries and semiconductors.
Amperes per square millimeter (A/mm²)
The practical unit for wires and windings.
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