Convert Coulomb to Femtocoulomb
Enter the number of coulombs that you want to convert to femtocoulombs.
How to Convert Coulombs to Femtocoulombs
The coulomb and femtocoulomb are both units of electric charge. By definition, 1 coulomb equals exactly 1e15 femtocoulombs. This means to convert coulombs to femtocoulombs, you multiply by 1e15.
Formula
Step-by-Step Example
Convert 5 C to femtocoulombs:
We need to convert coulombs to femtocoulombs
Since 1 C = 1e15 fC, multiply by 1e15
5 × 1e15 = 5e15
5 C = 5e15 fC
Coulomb to Femtocoulomb Conversion Table
Quick reference table for common coulomb to femtocoulomb conversions. Click any value for detailed calculation.
| Coulombs (C) | Femtocoulombs (fC) |
|---|---|
| 0.1 C | 1e14 fC |
| 0.5 C | 5e14 fC |
| 1 C | 1e15 fC |
| 2 C | 2e15 fC |
| 5 C | 5e15 fC |
| 10 C | 1e16 fC |
| 25 C | 2.5e16 fC |
| 50 C | 5e16 fC |
| 100 C | 1e17 fC |
About These Units
Coulomb (C)
The coulomb (C) is the SI unit of electric charge, defined as the charge transferred by 1 ampere flowing for 1 second. One coulomb equals 6.242×10¹⁸ elementary charges (electrons or protons). Named after physicist Charles-Augustin de Coulomb. Formula: Q = I × t (charge = current × time).
Femtocoulomb (fC)
A femtocoulomb (fC) equals 10⁻¹⁵ coulombs or about 6,242 electrons. Used in single-electron transistors, quantum dot devices, and advanced semiconductor characterization. One electron has a charge of 0.16 fC (160 aC).
Frequently Asked Questions
How do I convert coulombs to femtocoulombs?
To convert coulombs to femtocoulombs, multiply the value by 1e15. For example, 10 C = 1e16 fC.
How many femtocoulombs are in 1 coulomb?
1 coulomb equals 1e15 femtocoulombs.
What is the formula for coulombs to femtocoulombs?
The formula is: fC = C × 1e15.