conversions
Gigabytes to Megabytes
Last updated: May 31, 2026
Written by Blake Boege
A gigabytes to megabytes converter translates data capacities between GB and MB. In standard computer base-2 notation, 1 Gigabyte consists of exactly 1024 Megabytes. This utility is standard for tracking internet data caps and estimating file transfers.
Convert gigabytes to megabytes instantly. Read the conversion answers, the mathematical formula, and browse the reference lookup table.
Quick Answer
Convert Gigabytes to Megabytes instantly. 1 GB is equal to exactly 1024 MB in binary standard.
Gigabytes to Megabytes
Bidirectional Gigabytes to Megabytes Converter
Compute exact conversions using standard parameters.
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Answer
1024 MB
1 GB = 1024 MB
Gigabytes to Megabytes Reference Table
| Gigabytes (GB) | Megabytes (MB) | Description |
|---|---|---|
| 1 GB | 1,024 MB | Exactly one Gigabyte (binary) |
| 5 GB | 5,120 MB | High-definition movie download size |
| 10 GB | 10,240 MB | System operating update package |
| 50 GB | 51,200 MB | Blu-ray disk capacity |
| 100 GB | 102,400 MB | Ultra HD television season download |
| 1,024 GB | 1,048,576 MB | Exactly one Terabyte (binary) |
Examples
1 GB
1024 MB
How it works
To convert gigabytes (GB) to megabytes (MB), perform the following calculation: Note that this calculator utilizes the binary standard (base-2, where 1 MB = 1024 GB), which is standard in operating systems like Windows. Some contexts, such as hard drive manufacturers or network speeds, define metric prefixes using decimal values (base-10, where 1 MB = 1000 GB).
Formula
MB = GB × 1024
Method
Multiply gigabytes by 1024 to get megabytes.
Understanding Gigabytes to Megabytes Conversions
Converting measurements between metric and imperial scales, or relative speed, capacity, and computer data benchmarks, is essential in sciences, logistics, engineering, and daily travel. Using standard multipliers guarantees precision and alignment across different measurement systems. Note that this calculator utilizes the binary standard (base-2, where 1 MB = 1024 GB), which is standard in operating systems like Windows. Some contexts, such as hard drive manufacturers or network speeds, define metric prefixes using decimal values (base-10, where 1 MB = 1000 GB).
How to convert gigabytes to megabytes
To perform the conversion manually, use the formula MB = GB × 1024. For example, to convert 100 gigabytes into megabytes, multiply 100 by 1024, yielding 102400 MB.
How to convert megabytes to gigabytes
To reverse the conversion, use the formula GB = MB ÷ 1024. For instance, if you have 10 megabytes, divide 10 by 1024 (or multiply by its reciprocal 0.00097656), which equals 0.00977 GB.
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Frequently asked questions
Multiply the GB value by 1024. For example, 4 GB = 4 × 1024 = 4096 MB.
In binary format, 1 GB is equal to 1024 MB. In decimal format, 1 GB equals exactly 1000 MB.
The formula is Megabytes = Gigabytes × 1024.
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