Farads to Femtofarads Converter
Enter the capacitance in farads below to convert it to femtofarads.
Convert Farads to Femtofarads
Enter a value in farads (F) to convert to femtofarads (fF).
Farad to Femtofarad Conversion Table
Table showing various farad measurements converted to femtofarads. Click any preset value or arrow to load it into the converter.
| Farads (F) | Femtofarads (fF) |
|---|---|
| 0.0000001 F | 100,000,000 fF |
| 0.0000002 F | 200,000,000 fF |
| 0.0000003 F | 299,999,999.9999999 fF |
| 0.0000004 F | 399,999,999.9999999 fF |
| 0.0000005 F | 499,999,999.9999999 fF |
| 0.0000006 F | 599,999,999.9999999 fF |
| 0.0000007 F | 699,999,999.9999999 fF |
| 0.0000008 F | 799,999,999.9999999 fF |
| 0.0000009 F | 899,999,999.9999999 fF |
| 0.00000001 F | 10,000,000 fF |
How to Convert Farads to Femtofarads
To convert farads to femtofarads, multiply the capacitance by the following conversion ratio: 1e+15 femtofarads/farad.
Since one farad is equal to 1e+15 femtofarads, you can use this simple formula to convert:
The capacitance in femtofarads is equal to the capacitance in farads multiplied by 1e+15.
For example, here's how to convert 5 farads to femtofarads using the formula above.
How Many Femtofarads Are in a Farad?
There are 1e+15 femtofarads in a farad, which is why we use this value in the formula above.
Our farad to femtofarad calculator automatically converts your capacitance measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Farads and femtofarads are both units used to measure capacitance. Keep reading to learn more about each unit.
What Is a Farad?
SI unit of electrical capacitance (1 C/V). It serves as a primary reference unit for measuring capacitance across scientific and practical applications. [1]
The farad is classified as an International System of Units (SI) unit of capacitance. Farads can be abbreviated as F; for example, 1 farad can be written as 1 F.
As the primary coherent reference unit for capacitance in this category, all other capacitance units are mathematically anchored to the farad (F).
In practice, farads (F) are widely used across standard capacitance applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is a Femtofarad?
A femtofarad is a unit of capacitance equal to 1e-15 farads (F), the base unit for capacitance. 10⁻¹⁵ Farads. [2]
The femtofarad is classified as a metric and SI-compatible unit of capacitance. Femtofarads can be abbreviated as fF; for example, 1 femtofarad can be written as 1 fF.
In the metric system, "femto" is the standard SI prefix for quadrillionths, or 10⁻¹⁵. This makes the femtofarad (fF) a convenient decimal multiple of the farad (F).
In practice, femtofarads (fF) are widely used across fine-tolerance laboratory, analytical, and micro-scale capacitance measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting capacitance between farads (F) and femtofarads (fF), keep full floating-point precision (1 F = 1e+15 fF; 1 fF = 1e-15 F) during intermediate calculations and round only the final femtofarad figure to match your instrument tolerance.
More Farad & Femtofarad Conversions
Need to calculate in the opposite direction? Use our femtofarads to farads calculator to switch your starting unit immediately. You can also explore related tools such as converting femtofarads to farads, converting microfarads to farads, or converting picofarads to farads.
Frequently Asked Questions
References
- [1]NIST CUU StandardNIST CUU (Derived SI Unit: Farad (F))·Capacitance Metrology Standard — Farads (F) to Femtofarads (fF)
- [2]BIPM SpecificationBIPM (SI Prefixes (mF, µF, nF, pF))·Unit Specifications: Farad (F) & Femtofarad (fF)
- [3]NIST OWM ReferenceNIST OWM (SI Units — Electric Current & Metrology)·Conversion Factors & Mathematical Basis (F to fF)