Femtofarads to Farads Converter
Enter the capacitance in femtofarads below to convert it to farads.
Convert Femtofarads to Farads
Enter a value in femtofarads (fF) to convert to farads (F).
Femtofarad to Farad Conversion Table
Table showing various femtofarad measurements converted to farads. Click any preset value or arrow to load it into the converter.
| Femtofarads (fF) | Farads (F) |
|---|---|
| 1 fF | 1e-15 F |
| 10 fF | 1e-14 F |
| 100 fF | 1e-13 F |
| 1,000 fF | 1e-12 F |
| 10,000 fF | 1e-11 F |
| 100,000 fF | 1e-10 F |
| 1,000,000 fF | 1e-9 F |
| 5,000,000 fF | 5e-9 F |
| 10,000,000 fF | 0.00000001 F |
| 25,400,000 fF | 0.000000025 F |
How to Convert Femtofarads to Farads
To convert femtofarads to farads, multiply the capacitance by the following conversion ratio: 1e-15 farads/femtofarad.
Since one femtofarad is equal to 1e-15 farads, you can use this simple formula to convert:
The capacitance in farads is equal to the capacitance in femtofarads multiplied by 1e-15.
For example, here's how to convert 5 femtofarads to farads using the formula above.
How Many Farads Are in a Femtofarad?
There are 1e-15 farads in a femtofarad, which is why we use this value in the formula above.
Our femtofarad to farad calculator automatically converts your capacitance measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Femtofarads and farads are both units used to measure capacitance. Keep reading to learn more about each unit.
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. [1]
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.
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. [2]
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.
When converting capacitance between femtofarads (fF) and farads (F), keep full floating-point precision (1 fF = 1e-15 F; 1 F = 1e+15 fF) during intermediate calculations and round only the final farad figure to match your instrument tolerance.
More Femtofarad & Farad Conversions
Need to calculate in the opposite direction? Use our farads to femtofarads calculator to switch your starting unit immediately. You can also explore related tools such as converting farads to femtofarads, 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 — Femtofarads (fF) to Farads (F)
- [2]BIPM SpecificationBIPM (SI Prefixes (mF, µF, nF, pF))·Unit Specifications: Femtofarad (fF) & Farad (F)
- [3]NIST OWM ReferenceNIST OWM (SI Units — Electric Current & Metrology)·Conversion Factors & Mathematical Basis (fF to F)