Amperes to Coulombs Per Second Conversion

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

Results in Coulombs Per Second:
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1 A = 1 C/s

How to Convert Amperes to Coulombs Per Second

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

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

coulombs per second = amperes ÷ 1

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

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

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


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.[1]

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.

IA = VV / R

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

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.[2]

Ampere to Coulomb Per Second Conversion Table

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


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

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