Convert Amperes per square inch to Amperes per square foot
Convert Amperes per square inch (A/in²) to Amperes per square foot (A/ft²) instantly and accurately.
Conversion Formula
A/ft² = A/in² × 144
About Amperes per square inch
The ampere per square inch (A/in²) equals 1 / (0.0254)² A/m² ≈ 1550 A/m², used in US power semiconductor datasheets and electroforming specifications. JEDEC JESD22 and IPC standards specify maximum allowable current density in bond wires and copper interconnects in A/in²; electroforming of micro-components targets 0.5-5 A/in². 1 A/in² ≈ 1550 A/m² = 0.155 A/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
| Amperes per square inch (A/in²) | Amperes per square foot (A/ft²) |
|---|---|
| 1 A/in² | 144 A/ft² |
| 2 A/in² | 288 A/ft² |
| 5 A/in² | 720 A/ft² |
| 10 A/in² | 1440 A/ft² |
| 25 A/in² | 3600 A/ft² |
| 50 A/in² | 7200 A/ft² |
| 100 A/in² | 14400 A/ft² |