Attohenry is 1e-18 henry units.
Attohenrys to Picohenrys Converter — aH to pH
Convert Attohenry (aH) to Picohenry (pH) using the exact conversion factor (1 attohenry = 0.000001 picohenry). See the formula, worked examples, and conversion table.
Attohenrys to Picohenrys converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Picohenry is 1e-12 henry units.
Result = input x 1e-18 / 1e-12.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Attohenrys to Picohenrys
Attohenry and Picohenry both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Attohenry is 1e-18 henry units, and picohenry is 1e-12 henry units.
Formula
picohenrys = attohenrys × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 attohenry equals 1e-18 base units, and 1 picohenry equals 1e-12 base units, so dividing one by the other gives the direct attohenry-to-picohenry factor of 0.000001.
Simple example
1 aH × 0.000001 = 0.000001 pH
1 attohenry = 0.000001 picohenrys.
Real-world example
120 aH × 0.000001 = 0.00012 pH
120 attohenrys = 0.00012 picohenrys.
Conversion table
| Attohenry (aH) | Picohenry (pH) |
|---|---|
| 1 aH | 0.000001 pH |
| 5 aH | 0.000005 pH |
| 12 aH | 0.000012 pH |
| 24 aH | 0.000024 pH |
| 120 aH | 0.00012 pH |
| 240 aH | 0.00024 pH |
Reverse conversion: Picohenry to Attohenry
0.000001 pH × 1000000 = 1 aH
0.000001 picohenrys = 1 attohenrys.
attohenrys = picohenrys × 1000000
For a page dedicated to this direction, see Picohenry to Attohenry.
Understanding the Attohenry (aH)
Attohenry is 1e-18 henry units.
Understanding the Picohenry (pH)
Picohenry is 1e-12 henry units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picohenrys are in 1 attohenry?
1 attohenry equals 0.000001 picohenrys, using the exact defined conversion factor rather than an estimate.
How do I convert attohenry to picohenry?
Multiply the attohenry value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert picohenry back to attohenry?
Use the reverse factor: 1 picohenry equals 1,000,000 attohenrys. You can also use the swap control in the converter above to flip the direction instantly.
What is a attohenry?
Attohenry (aH) is a unit of electricity.
What is a picohenry?
Picohenry (pH) is a unit of electricity.
Is the attohenry to picohenry conversion exact?
Yes. Both attohenry and picohenry are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.