Convert Attohenries to Henries
Convert Attohenries (aH) to Henries (H) instantly and accurately.
Conversion Formula
H = aH × 1.000000000e-18
About Attohenries
The attohenry (aH) equals 10⁻¹⁸ H, the scale for parasitic inductances in on-chip metal interconnects and quantum-device bondwires. Metal traces in sub-10 nm CMOS processes have via-to-via inductances in the attohenry range; superconducting qubit junctions are modelled with loop inductances of tens to hundreds of attohenries; microwave integrated circuit (MMIC) vias at 100 GHz are characterised in aH. 1 aH = 10⁻³ fH = 10⁻¹⁸ H.
About Henries
The henry (H) is the SI derived unit of electrical inductance, equal to 1 volt-second per ampere (1 V·s/A = 1 Ω·s = 1 kg·m²·A⁻²·s⁻²), named after Joseph Henry (1797-1878). Mains-frequency (50/60 Hz) power transformers have primary inductances of 1-100 H; loudspeaker crossover woofer inductors are 1-5 mH; large power-line reactors are 0.1-10 H. 1 H = 10³ mH = 10⁶ µH.
Quick Reference Table
| Attohenries (aH) | Henries (H) |
|---|---|
| 1 aH | 1 × 10-18 H |
| 2 aH | 2 × 10-18 H |
| 5 aH | 5 × 10-18 H |
| 10 aH | 1 × 10-17 H |
| 25 aH | 2.5 × 10-17 H |
| 50 aH | 5 × 10-17 H |
| 100 aH | 1 × 10-16 H |