Convert Amperes per square foot to Gigaamperes per square metre
Convert Amperes per square foot (A/ft²) to Gigaamperes per square metre (GA/m²) instantly and accurately.
Conversion Formula
GA/m² = A/ft² × 1.076391042e-8
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.
About Gigaamperes per square metre
The gigaampere per square metre (GA/m²) equals 10⁹ A/m², the extreme scale for thermonuclear plasmas and ultra-fast pulsed discharges. Current density in the compressed plasma of a z-pinch at peak compression is 1-100 GA/m²; field-emission current density from a sharp metallic tip at the Fowler-Nordheim threshold is ≈1-10 GA/m². 1 GA/m² = 10⁹ A/m² = 10³ MA/m².
Quick Reference Table
| Amperes per square foot (A/ft²) | Gigaamperes per square metre (GA/m²) |
|---|---|
| 1 A/ft² | 1.076 × 10-8 GA/m² |
| 2 A/ft² | 2.153 × 10-8 GA/m² |
| 5 A/ft² | 5.382 × 10-8 GA/m² |
| 10 A/ft² | 1.076 × 10-7 GA/m² |
| 25 A/ft² | 2.691 × 10-7 GA/m² |
| 50 A/ft² | 5.382 × 10-7 GA/m² |
| 100 A/ft² | 1.076 × 10-6 GA/m² |