This article will show how to convert voltage measurement units from gigavolts (GV) to megavolts (MV). We will cover essential definitions, provide examples, share relevant formulas, and present tables, along with answers to common questions.
Definitions of Volt, Gigavolt, and Megavolt
Let’s get started by understanding the key definitions of Volt (V)
, Gigavolt (GV)
and Megavolt (MV)
. Understanding these terms will allow you to perform conversions confidently.
What is Volt (V)?
A volt (V
) is the SI (International System of Units) unit of electric potential and voltage. It measures the difference in electric energy between two points in a circuit. One volt means one ampere of current uses one watt of power.[1]
According to SI prefixes[2], which are based on powers of 10, a volt (1 V
) is equivalent to one-billionth (1/1,000,000,000)
gigavolts, or 10-9 GV
, or 0.000000001 GV
.

What is Gigavolt (GV)?
A gigavolt (GV) is a unit of electrical potential equal to one billion volts (1,000,000,000 V
). This measurement is used in applications involving extreme voltage levels that standard voltage units cannot effectively represent.

What is Megavolt (MV)?
A megavolt (MV) is a unit of electrical potential equal to one million volts (1,000,000 V
). Think of it like comparing the height of a building to a mountain. Megavolts help quantify extremely high voltages where standard volt measurements are impractical.

GV to MV 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 giga-
prefix in the International System of Units (SI) represents a multiplier of 109 (1,000,000,000)
while the mega-
represents a multiplier of 106 (1,000,000)
.
So, to convert from gigavolts to megavolts, multiply the number of gigavolts (V(GV)
) by 103
or 1,000
.
V(MV) = V(GV) × 103 = V(GV) × 1,000
Or remember the GV-to-MV
conversion factor: 1 GV = 103 = 1,000 MV
GV to MV conversion table
The conversion table below provides a handy reference for converting voltage measurement units from gigavolts (GV) to megavolts (MV). It covers a range from 0.1 GV to 1,000 GV, allowing for easy and quick conversions between both units of measurement.
Gigavolts (GV) | Megavolts (MV) |
---|---|
0.1 GV | 100 MV |
0.5 GV | 500 MV |
1 GV | 1,000 MV |
2 GV | 2,000 MV |
4 GV | 4,000 MV |
5 GV | 5,000 MV |
10 GV | 10,000 MV |
20 GV | 20,000 MV |
30 GV | 30,000 MV |
40 GV | 40,000 MV |
50 GV | 50,000 MV |
60 GV | 60,000 MV |
70 GV | 70,000 MV |
80 GV | 80,000 MV |
90 GV | 90,000 MV |
100 GV | 100,000 MV |
200 GV | 200,000 MV |
500 GV | 500,000 MV |
800 GV | 800,000 MV |
1,000 GV | 1,000,000 MV |
Examples
Now, let's look at an example that illustrates the calculations required to convert from gigavolts to megavolts (GV to MV).
Example: Ultra-High Voltage Grid Integration
Fusion and solar energy facilities generate electricity in gigavolts, but power grids require megavolt conversions to ensure compatibility and efficient transmission.
Your task is to convert 7.21 gigavolts to megavolts to analyze grid efficiency in integrating ultra-high voltage energy sources.
Solution
Since 1 gigavolt (GV) = 103 = 1,000 megavolts (MV)
, we can convert 7.21 GV
to megavolts by using the following formula:
Therefore, the 7.21 GV
is equivalent to 7,210 MV
.
To solve the problem with our calculator, follow the steps below:
- Enter the value in gigavolts: For this example, enter
7.21
into theFrom
box. - View the result: The converter instantly calculates and displays the equivalent value in megavolts:
7,210 MV
.

FAQs
Is 1 gigavolt or 1 megavolt larger?
A gigavolt (GV) is a million times bigger than a megavolt (MV). Here are the relationships between the units:
1 GV = 103 = 1,000 MV
1 MV = 10-3 = 1 ÷ 1,000 = 0.001 GV
How to convert from gigavolts to megavolts?
To convert voltage from gigavolts (GV) to megavolts (MV), follow these simple steps:
- Write down the voltage value in
gigavolts (GV)
. - Multiply it by the value of the
GV-to-MV
conversion factor:103
or1,000
. - The result of the multiplication is the value of the voltage in
megavolts (MV)
.
Why do I need to convert from gigavolts to megavolts?
Gigavolts (GV) represent extremely high voltage levels, while megavolts (MV) provide a more manageable scale for power regulation, diagnostics, and system efficiency. Converting GV to MV is essential in particle physics, aerospace engineering, IT infrastructure, medical technology, and renewable energy, where voltage must be adjusted for stability, compatibility, and precise control.
This conversion ensures accurate calibration, optimized power distribution, and reliable equipment performance in applications like superconducting circuits, spacecraft energy management, data centers, and fusion energy research.
You now know how to convert voltage from gigavolts (GV) to megavolts (MV). You can quickly use our calculator to convert between the voltage measurement units to save time for future calculations.