Coulombs Per Second to Amperes Conversion

Enter the electric current in coulombs per second below to get the value converted to amperes.

Results in Amperes:
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1 C/s = 1 A

How to Convert Coulombs Per Second to Amperes

To convert a coulomb per second measurement to an ampere measurement, divide the electric current by the conversion ratio.

Since one ampere is equal to 1 coulomb per second, you can use this simple formula to convert:

amperes = coulombs per second ÷ 1

The electric current in amperes is equal to the coulombs per second divided by 1.

For example, here's how to convert 5 coulombs per second to amperes using the formula above.
5 C/s = (5 ÷ 1) = 5 A

Coulombs per second and amperes are both units used to measure electric current. Keep reading to learn more about each unit of measure.

Coulombs Per Second

One coulomb per second is equal to one coulomb of charge over one second.

Coulombs per second can be abbreviated as C/s; for example, 1 coulomb per second can be written as 1 C/s.

In formal expressions, the slash, or solidus (/), is used to separate units used to indicate division in an expression.[1]


The ampere, commonly referred to as an "amp," is the electrical current constant equal to the flow of one coulomb per second.

The ampere was previously defined as a constant current that when passed through two straight and parallel conductors that are spaced one meter apart, will produce a force equal to 0.0000002 newtons per meter of length.

In 2019, the ampere was redefined as the electric current corresponding to the flow of 1/(1.602 176 634 × 10-19) elementary charges per second.[2]

The ampere is the SI base unit for electric current in the metric system. An ampere is sometimes also referred to as an amp. Amperes can be abbreviated as A; for example, 1 ampere can be written as 1 A.

Ohm's Law states the current between two points on a conductor is proportional to the voltage and inversely proportional to the resistance. Using Ohm's Law, it's possible to express the current in amperes as an expression using resistance and voltage.


The current in amperes is equal to the potential difference in volts divided by the resistance in ohms.

Coulomb Per Second to Ampere Conversion Table

Coulomb per second measurements converted to amperes
Coulombs Per Second Amperes
1 C/s 1 A
2 C/s 2 A
3 C/s 3 A
4 C/s 4 A
5 C/s 5 A
6 C/s 6 A
7 C/s 7 A
8 C/s 8 A
9 C/s 9 A
10 C/s 10 A
11 C/s 11 A
12 C/s 12 A
13 C/s 13 A
14 C/s 14 A
15 C/s 15 A
16 C/s 16 A
17 C/s 17 A
18 C/s 18 A
19 C/s 19 A
20 C/s 20 A
21 C/s 21 A
22 C/s 22 A
23 C/s 23 A
24 C/s 24 A
25 C/s 25 A
26 C/s 26 A
27 C/s 27 A
28 C/s 28 A
29 C/s 29 A
30 C/s 30 A
31 C/s 31 A
32 C/s 32 A
33 C/s 33 A
34 C/s 34 A
35 C/s 35 A
36 C/s 36 A
37 C/s 37 A
38 C/s 38 A
39 C/s 39 A
40 C/s 40 A


  1. National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units,
  2. International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019,