Attoampere is 1e-18 ampere units.
Attoamperes to Picoamperes Converter — aA to pA
Convert Attoampere (aA) to Picoampere (pA) using the exact conversion factor (1 attoampere = 0.000001 picoampere). See the formula, worked examples, and conversion table.
Attoamperes to Picoamperes 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.
Picoampere is 1e-12 ampere 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 Attoamperes to Picoamperes
Attoampere and Picoampere 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: Attoampere is 1e-18 ampere units, and picoampere is 1e-12 ampere units.
Formula
picoamperes = attoamperes × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 attoampere equals 1e-18 base units, and 1 picoampere equals 1e-12 base units, so dividing one by the other gives the direct attoampere-to-picoampere factor of 0.000001.
Simple example
1 aA × 0.000001 = 0.000001 pA
1 attoampere = 0.000001 picoamperes.
Real-world example
120 aA × 0.000001 = 0.00012 pA
120 attoamperes = 0.00012 picoamperes.
Conversion table
| Attoampere (aA) | Picoampere (pA) |
|---|---|
| 1 aA | 0.000001 pA |
| 5 aA | 0.000005 pA |
| 12 aA | 0.000012 pA |
| 24 aA | 0.000024 pA |
| 120 aA | 0.00012 pA |
| 240 aA | 0.00024 pA |
Reverse conversion: Picoampere to Attoampere
0.000001 pA × 1000000 = 1 aA
0.000001 picoamperes = 1 attoamperes.
attoamperes = picoamperes × 1000000
For a page dedicated to this direction, see Picoampere to Attoampere.
Understanding the Attoampere (aA)
Attoampere is 1e-18 ampere units.
Understanding the Picoampere (pA)
Picoampere is 1e-12 ampere units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picoamperes are in 1 attoampere?
1 attoampere equals 0.000001 picoamperes, using the exact defined conversion factor rather than an estimate.
How do I convert attoampere to picoampere?
Multiply the attoampere value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert picoampere back to attoampere?
Use the reverse factor: 1 picoampere equals 1,000,000 attoamperes. You can also use the swap control in the converter above to flip the direction instantly.
What is a attoampere?
Attoampere (aA) is a unit of electricity.
What is a picoampere?
Picoampere (pA) is a unit of electricity.
Is the attoampere to picoampere conversion exact?
Yes. Both attoampere and picoampere 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.