This article will show how to convert electric current measurement units from megaamperes (MA) to Amperes (A). We will cover essential definitions, provide examples, share relevant formulas, and present tables, along with answers to common questions.
Definitions of Ampere and Megaampere
Let’s get started by understanding the key definitions of Ampere (A)
and Megaampere (MA)
. Understanding these terms will allow you to perform conversions confidently.
What is Ampere?
The ampere (A) is the SI base unit of electric current, representing the amount of charge flowing through a conductor per second.[1] It is defined based on the elementary charge (e), where 1 A = 1 coulomb per second (C/s).
"Amp" is an informal abbreviation commonly used in everyday conversation and electrical contexts, though "A" remains the official SI unit symbol.

According to SI prefixes[2], which are based on powers of 10, an ampere (1 A
) is equivalent to one millionth (1/1,000,000) of a megaampere (10-6 MA
or 0.000001 MA)
.
What is a Megaampere?
A megaampere (MA) is a derived unit of electric current in the SI system equal to one million ampere (1,000,000 A
).

It exists for extremes: simulating cosmic-scale energy bursts or probing physics frontiers. It’s a unit for specialists, not everyday tech, but it’s crucial for breakthroughs that could redefine how humanity harnesses power.
MA to A formula
Let’s take a closer look at the conversion formula so you can carry out these conversions independently, whether using a calculator or doing it manually with pencil and paper.
The mega-
prefix in the International System of Units (SI) represents a multiplier of 106 (1,000,000)
. So, to convert from megaamps to amps, multiply the number of megaamps (I(MA)
) by 106 (1,000,000)
.
I(A) = I(MA) × 106 = I(MA) × 1,000,000
Or remember the MA-to-A
conversion factor: 1 MA = 106 = 1,000,000 A
MA to A conversion table
The conversion table below provides a handy reference for converting electric current measurement units from megaamperes (MA) to amperes (A). It covers a range from 0.1 MA
to 1,000 MA
, allowing for easy and quick conversions between these units of measurement.
Megaamperes (MA) | Amperes (A) |
---|---|
0.1 MA | 100,000 A |
0.5 MA | 500,000 A |
1 MA | 1,000,000 A |
2 MA | 2,000,000 A |
4 MA | 4,000,000 A |
5 MA | 5,000,000 A |
10 MA | 10,000,000 A |
20 MA | 20,000,000 A |
30 MA | 30,000,000 A |
40 MA | 40,000,000 A |
50 MA | 50,000,000 A |
60 MA | 60,000,000 A |
70 MA | 70,000,000 A |
80 MA | 80,000,000 A |
90 MA | 90,000,000 A |
100 MA | 100,000,000 A |
200 MA | 200,000,000 A |
500 MA | 500,000,000 A |
800 MA | 800,000,000 A |
1,000 MA | 1,000,000,000 A |
Examples
Now, let's look at an example that illustrates the calculations required to convert from megaamperes to amperes (MA to A).
Example: High-Power Electrical Transmission Systems
Large-scale electrical grids handle current flow measured in megaamperes for transmission across vast regions. Engineers convert these values to amperes to assess power distribution and system load more effectively
If a transmission line carries 3.1 MA, what is the current in amperes? You need it to ensure precise monitoring of electrical power distribution and load balancing in the grid.
Solution
Since 1 megaampere (MA) = 106 = 1,000,000 amperes (A)
, we can convert 3.1 MA
to amperes by using the following formula:
Therefore, the 3.1 MA
electric current is equivalent to 3,100,000 A
.
To solve the problem with our calculator, follow the steps below:
- Enter the value in megaamperes: For this example, enter
3.1
into theFrom
box. - View the result: The converter instantly calculates and displays the equivalent value in amperes:
3,100,000 A
.

FAQs
Is 1 megaampere or 1 ampere larger?
A megaampere (MA) is a million times bigger than an ampere (A). Here are the relationships between the units:
1 MA = 106 = 1,000,000 A
1 A = 10-6 = 1 ÷ 1,000,000 = 0.000001 MA
How to convert from megaamperes to amperes?
To convert electric current from megaamperes (MA) to amperes (A), follow these simple steps:
- Write down the electric current value in
megaamperes (MA)
. - Multiply it by the value of a
MA-to-A
conversion factor:106
or1,000,000
. - The result of multiplication is the value of the electric current in
amperes (A)
.
Why do I need to convert megaamperes to amperes?
Converting megaamperes to amperes simplifies current measurements, making large-scale values easier to interpret for practical applications. Megaamperes (MA) represent extremely high currents, often used in large-scale power systems, industrial equipment, or research. However, most electrical instruments, calculations, and safety standards use amperes (A) as the standard unit.
By converting from MA to A (1 MA = 106 A), engineers and scientists can work with manageable figures, ensuring precise monitoring, compatibility with standard equipment, and accurate analysis of electrical performance.
You now know how to convert electric current from megaamperes (MA) to amperes (A). You can quickly use our calculator to convert between the electric current measurement units to save time for future calculations.