Convert Milliamperes per square metre to Amperes per square foot
Convert Milliamperes per square metre (mA/m²) to Amperes per square foot (A/ft²) instantly and accurately.
Conversion Formula
A/ft² = mA/m² × 9.290304000e-5
About Milliamperes per square metre
The milliampere per square metre (mA/m²) equals 10⁻³ A/m². Cathodic protection current density applied to reinforced concrete structures is 2-20 mA/m²; faradaic current density during slow anodic dissolution of iron in dilute H2SO4 is 1-100 mA/m²; exchange current density of the oxygen reduction reaction on platinum is ≈2 mA/m². 1 mA/m² = 10⁻³ A/m² = 0.1 µA/cm².
About Amperes per square foot
The ampere per square foot (A/ft²) equals 1 / (0.3048)² A/m² ≈ 10.764 A/m², used in US electroplating and grounding standards. ASTM B734 copper plating specifications cite current density in A/ft²; IEEE Std 80 specifies grounding grid design current density in A/ft² when ground fault current is distributed across the soil surface. 1 A/ft² ≈ 10.764 A/m².
Quick Reference Table
| Milliamperes per square metre (mA/m²) | Amperes per square foot (A/ft²) |
|---|---|
| 1 mA/m² | 9.29 × 10-5 A/ft² |
| 2 mA/m² | 0.000185806 A/ft² |
| 5 mA/m² | 0.000464515 A/ft² |
| 10 mA/m² | 0.00092903 A/ft² |
| 25 mA/m² | 0.00232258 A/ft² |
| 50 mA/m² | 0.00464515 A/ft² |
| 100 mA/m² | 0.0092903 A/ft² |