Picoampere is 1e-12 ampere units.
Picoamperes to Femtoamperes Converter — pA to fA
Convert Picoampere (pA) to Femtoampere (fA) using the exact conversion factor (1 picoampere = 1,000 femtoampere). See the formula, worked examples, and conversion table.
Picoamperes to Femtoamperes 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.
Femtoampere is 1e-15 ampere units.
Result = input x 1e-12 / 1e-15.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Picoamperes to Femtoamperes
Picoampere and Femtoampere 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: Picoampere is 1e-12 ampere units, and femtoampere is 1e-15 ampere units.
Formula
femtoamperes = picoamperes × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 picoampere equals 1e-12 base units, and 1 femtoampere equals 1e-15 base units, so dividing one by the other gives the direct picoampere-to-femtoampere factor of 1000.
Simple example
1 pA × 1000 = 1,000 fA
1 picoampere = 1,000 femtoamperes.
Real-world example
120 pA × 1000 = 120,000 fA
120 picoamperes = 120,000 femtoamperes.
Conversion table
| Picoampere (pA) | Femtoampere (fA) |
|---|---|
| 1 pA | 1,000 fA |
| 5 pA | 5,000 fA |
| 12 pA | 12,000 fA |
| 24 pA | 24,000 fA |
| 120 pA | 120,000 fA |
| 240 pA | 240,000 fA |
Reverse conversion: Femtoampere to Picoampere
1 fA × 0.001 = 0.001 pA
1 femtoampere = 0.001 picoamperes.
picoamperes = femtoamperes × 0.001
For a page dedicated to this direction, see Femtoampere to Picoampere.
Understanding the Picoampere (pA)
Picoampere is 1e-12 ampere units.
Understanding the Femtoampere (fA)
Femtoampere is 1e-15 ampere units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtoamperes are in 1 picoampere?
1 picoampere equals 1,000 femtoamperes, using the exact defined conversion factor rather than an estimate.
How do I convert picoampere to femtoampere?
Multiply the picoampere value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert femtoampere back to picoampere?
Use the reverse factor: 1 femtoampere equals 0.001 picoamperes. You can also use the swap control in the converter above to flip the direction instantly.
What is a picoampere?
Picoampere (pA) is a unit of electricity.
What is a femtoampere?
Femtoampere (fA) is a unit of electricity.
Is the picoampere to femtoampere conversion exact?
Yes. Both picoampere and femtoampere are defined by fixed standards rather than physical artifacts, so the factor of 1000 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.