Convert data storage units — bytes, KB, MB, GB, TB, PB.
| Unit | Name | Value |
|---|---|---|
| bit | Bit | 8589934600 |
| B | Byte | 1073741800 |
| KB | Kilobyte | 1048576 |
| MB | Megabyte | 1024 |
| TB | Terabyte | 0.00097657283 |
| PB | Petabyte | 9.5369541e-7 |
Formula: Megabyte = Gigabyte × 1000
Multiply any gigabyte value by 1000 to get megabyte. One gigabyte equals 1000 MB.
Reverse: Gigabyte = Megabyte × 0.001
Common gigabyte values with real-world context — factor: 1 GB = 1000 MB
| Gigabyte (GB) | Megabyte (MB) | Context |
|---|---|---|
| 0.001 GB | 1 MB | 1 MB photo |
| 0.01 GB | 10 MB | MP3 song |
| 0.1 GB | 100 MB | Short video |
| 1 GB | 1,000 MB | HD movie |
| 4 GB | 4,000 MB | 4K movie |
| 8 GB | 8,000 MB | 8 GB USB drive |
| 16 GB | 1.6e+04 MB | 8 GB USB drive |
| 32 GB | 3.2e+04 MB | Large game |
| 64 GB | 6.4e+04 MB | Large game |
| 128 GB | 1.28e+05 MB | Phone storage |
| 256 GB | 2.56e+05 MB | 256 GB SSD |
| 500 GB | 5e+05 MB | 500 GB drive |
| 1,000 GB | 1e+06 MB | 1 TB drive |
| 2,000 GB | 2e+06 MB | 2 TB NAS |
| 8,000 GB | 8e+06 MB | 8 TB enterprise |
GB × 1,000 = MB in decimal (SI). Used by storage manufacturers and most consumer software.
GB × 1,024 = MiB in binary. Used by operating systems. A 1 GB file = 1,024 MiB exactly.
1 GB = 1,000 MB. 8 GB = 8,000 MB. 128 GB = 128,000 MB.
Specifies app download sizes, database backup sizes, and API payload limits in GB.
Compares phone, tablet, and laptop storage in GB when purchasing devices.
Provisions storage buckets, database sizes, and VM disk images in GB.
Estimates project sizes — 1 minute of 4K RAW video uses about 6 GB.
Monitors disk usage, quota limits, and backup sizes across GB-scale storage.
Handles dataset sizes in GB for training, validation, and test splits.
The gigabyte (GB) equals 1,000,000,000 bytes (decimal) or 1,073,741,824 bytes (binary). The distinction matters: Windows historically reported drive sizes in binary gigabytes, while drive manufacturers used decimal — causing the perennial 'missing space' confusion.
Gigabytes define modern consumer storage: smartphone apps, photos, and videos. A typical smartphone photo is 3-5 MB, so 1 GB holds roughly 200-300 photos. A 4K movie takes 60-100 GB.
Interesting fact: The first 1 GB hard drive (IBM 3380, 1980) weighed 250 kg and cost $40,000. Today, a 1 GB microSD card costs about $0.10.
The megabyte (MB) equals 1,000,000 bytes (decimal) or 1,048,576 bytes (binary). It became the dominant unit for file sizes and storage in the 1990s with the rise of personal computing and the internet.
Megabytes define everyday digital content: a 3-minute MP3 song is about 3-5 MB; a high-resolution JPEG photo is 2-6 MB; a standard web page averages around 2 MB including images.
Interesting fact: The entire text of the King James Bible is about 4.3 MB. The first consumer CD-ROMs (1985) held 650 MB, which seemed enormous at the time.
Converting gigabyte to megabyte is a common task in computing, networking, and data management. Storage manufacturers, operating systems, and network equipment often express data sizes in different units — understanding the conversion is essential for comparing specifications, planning storage capacity, and interpreting network speed versus file size relationships.
As a practical reference: 5 GB = 5000 MB and 10 GB = 10,000 MB. For larger quantities, 100 GB = 100,000 MB. The reverse conversion uses the factor 0.001, so 1 MB = 0.001 GB. Note that decimal prefixes (KB=1,000, MB=1,000,000) differ from binary prefixes (KiB=1,024, MiB=1,048,576) — always check which standard your software or hardware uses.
All conversions use the internationally recognized factor of exactly 1 GB = 1000 MB, calculated with IEEE 754 double-precision arithmetic accurate to at least 8 significant figures.