Convert coulomb to elementary charge

Vice Versa: elementary charge to coulomb

Coulomb

The coulomb (symbol: C) is the SI unit of electric charge. It is the charge transported by a constant current of one ampere in one second. One coulomb equals the charge of approximately 6.242×10¹⁸ elementary charges (electrons or protons).

Elementary Charge

The elementary charge (e) is the electric charge carried by a single proton or the magnitude of charge carried by a single electron. Its exact value is 1.602176634 × 10⁻¹⁹ coulombs, defined exactly since the 2019 redefinition of SI units. It is the fundamental unit of charge in quantum mechanics and the basis for all quantised electric charge in the Standard Model of particle physics.

Coulomb to Elementary Charge conversion table

Coulomb	Elementary Charge	Elementary Charge	Coulomb
1	6.242E+18	1	1.602E-19
2	1.248E+19	2	3.204E-19
3	1.872E+19	3	4.807E-19
5	3.121E+19	5	8.011E-19
10	6.242E+19	10	1.602E-18
20	1.248E+20	20	3.204E-18
25	1.56E+20	25	4.005E-18
50	3.121E+20	50	8.011E-18
100	6.242E+20	100	1.602E-17
250	1.56E+21	250	4.005E-17
500	3.121E+21	500	8.011E-17
1000	6.242E+21	1000	1.602E-16

How to convert Coulomb to Elementary Charge

1 C = 6.242E+18 e. To convert any value, multiply it by 6.242E+18. For example, 25 C = 1.56E+20 e.

Frequently asked questions

How many e are there in one C?: One C is equal to 6.242E+18 e.
How do you convert Coulomb to Elementary Charge?: Multiply the value in Coulomb by 6.242E+18 to get the result in Elementary Charge.
How much is 25 C in e?: 25 C is equal to 1.56E+20 e.
How do you convert Elementary Charge back to Coulomb?: Divide by the same factor: multiply the value in Elementary Charge by 1.602E-19 to get Coulomb.