Last updated: May 28, 2025

Megaampere to Ampere Converter

Created by

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.

Ampere Definition and Illustration
What is Ampere? The definition and illustration.

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).

What is Megaampere (MA)?
What is a Megaampere (MA)?

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

$$\text{I}_\text{(A)} = \text{I}_\text{(MA)} \times 10^{6} = \text{I}_\text{(MA)} \times 1{,}000{,}000$$

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 MA100,000 A
0.5 MA500,000 A
1 MA1,000,000 A
2 MA2,000,000 A
4 MA4,000,000 A
5 MA5,000,000 A
10 MA10,000,000 A
20 MA20,000,000 A
30 MA30,000,000 A
40 MA40,000,000 A
50 MA50,000,000 A
60 MA60,000,000 A
70 MA70,000,000 A
80 MA80,000,000 A
90 MA90,000,000 A
100 MA100,000,000 A
200 MA200,000,000 A
500 MA500,000,000 A
800 MA800,000,000 A
1,000 MA1,000,000,000 A
Megaamps to amps (MA to A) conversion table

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:

$$\text{I}_\text{(A)} = \text{I}_\text{(MA)} \times 1{,}000{,}000$$
$$\text{I}_\text{(A)} = 3.1 \times 1{,}000{,}000 = \boxed{3{,}100{,}000 \text{ A}}$$

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:

  1. Enter the value in megaamperes: For this example, enter 3.1 into the From box.
  2. View the result: The converter instantly calculates and displays the equivalent value in amperes: 3,100,000 A.
Megaamperes to Amperes converter example
Steps to convert from megaamperes to amperes with our calculator

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 or 1,000,000.
  • 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.

Megaampere to Ampere Converter

About this app

Megaampere to Ampere Converter

Our megaamperes to amperes (MA to A) converter is a simple web app for converting electric current measurement units between megaamperes (MA) and amperes (A), with explanations, formulas, examples, and tables.

Availability

You can use the calculator for free as a PWA web app online or install it locally on any modern operating system, including Android, iOS, Windows 11/10, and macOS.

Megaampere to Ampere Converter QR
Scan Me
Use Megaampere to Ampere Converter as Web App
Similar Calculators

References

2 Sources

  1. ⬆️ Ampere: Introduction | NIST. (2018, May 15). NIST.

    https://www.nist.gov/si-redefinition/ampere-introduction
  2. ⬆️ Metric (SI) Prefixes | NIST. (2010, January 13). NIST.

    https://www.nist.gov/pml/owm/metric-si-prefixes