Convert Gigaamperes to Nanoamperes
Convert Gigaamperes (GA) to Nanoamperes (nA) instantly and accurately.
Conversion Formula
nA = GA × 1.000000000e+18
About Gigaamperes
The gigaampere (GA) equals 10⁹ A, a scale that lies beyond any man-made device and arises only in extreme astrophysical or geophysical contexts. Large-scale magnetospheric Birkeland field-aligned currents between Earth's ionosphere and magnetosphere are estimated at 1-10 MA total, well below 1 GA; however, pulsar magnetosphere discharge models and neutron-star lightning analogues are sometimes expressed in gigaampere terms. 1 GA = 10⁹ A = 10³ MA.
About Nanoamperes
The nanoampere (nA) equals 10⁻⁹ A, typical for reverse saturation currents of silicon diodes, quiescent supply currents of CMOS logic, and microelectrode measurements in analytical electrochemistry. A silicon p-n junction at room temperature has a saturation current of 1-10 nA; a well-designed op-amp input bias current is 1-100 nA; wearable biosensors commonly operate in the nanoampere range. 1 nA = 10⁻³ µA = 10³ pA.
Quick Reference Table
| Gigaamperes (GA) | Nanoamperes (nA) |
|---|---|
| 1 GA | 1 × 1018 nA |
| 2 GA | 2 × 1018 nA |
| 5 GA | 5 × 1018 nA |
| 10 GA | 1 × 1019 nA |
| 25 GA | 2.5 × 1019 nA |
| 50 GA | 5 × 1019 nA |
| 100 GA | 1 × 1020 nA |