Microfarad is 0.000001 farad units.
Microfarads to Attofarads Converter — uF to aF
Convert Microfarad (uF) to Attofarad (aF) using the exact conversion factor (1 microfarad = 1,000,000,000,000 attofarad). See the formula, worked examples, and conversion table.
Microfarads to Attofarads 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.
Attofarad is 1e-18 farad units.
Result = input x 1e-6 / 1e-18.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Microfarads to Attofarads
Microfarad and Attofarad 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: Microfarad is 0.000001 farad units, and attofarad is 1e-18 farad units.
Formula
attofarads = microfarads × 1000000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 microfarad equals 0.000001 base units, and 1 attofarad equals 1e-18 base units, so dividing one by the other gives the direct microfarad-to-attofarad factor of 1000000000000.
Simple example
1 uF × 1000000000000 = 1,000,000,000,000 aF
1 microfarad = 1,000,000,000,000 attofarads.
Real-world example
120 uF × 1000000000000 = 1.2e+14 aF
120 microfarads = 1.2e+14 attofarads.
Conversion table
| Microfarad (uF) | Attofarad (aF) |
|---|---|
| 1 uF | 1,000,000,000,000 aF |
| 5 uF | 5e+12 aF |
| 12 uF | 1.2e+13 aF |
| 24 uF | 2.4e+13 aF |
| 120 uF | 1.2e+14 aF |
| 240 uF | 2.4e+14 aF |
Reverse conversion: Attofarad to Microfarad
1 aF × 1e-12 = 1e-12 uF
1 attofarad = 1e-12 microfarads.
microfarads = attofarads × 1e-12
For a page dedicated to this direction, see Attofarad to Microfarad.
Understanding the Microfarad (uF)
Microfarad is 0.000001 farad units.
Understanding the Attofarad (aF)
Attofarad is 1e-18 farad units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many attofarads are in 1 microfarad?
1 microfarad equals 1,000,000,000,000 attofarads, using the exact defined conversion factor rather than an estimate.
How do I convert microfarad to attofarad?
Multiply the microfarad value by 1000000000000. The converter above does this instantly to whatever precision you set.
How do I convert attofarad back to microfarad?
Use the reverse factor: 1 attofarad equals 1e-12 microfarads. You can also use the swap control in the converter above to flip the direction instantly.
What is a microfarad?
Microfarad (uF) is a unit of electricity.
What is a attofarad?
Attofarad (aF) is a unit of electricity.
Is the microfarad to attofarad conversion exact?
Yes. Both microfarad and attofarad are defined by fixed standards rather than physical artifacts, so the factor of 1000000000000 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.