Data Storage Converter
Convert between bits, bytes, KB, MB, GB, TB and more. Free and instant.
1 Gigabyte (GB) =
1024
Megabyte (MB)
Popular Conversions
Real World Size Reference
| Item | Approx Size |
|---|---|
| Text message | 1 KB |
| MP3 song (3 min) | 3-5 MB |
| HD Photo | 3-8 MB |
| HD Movie (2hr) | 4-8 GB |
| 4K Movie (2hr) | 15-20 GB |
| DVD | 4.7 GB |
| Blu-ray Disc | 25-50 GB |
| iPhone 15 Storage | 128 GB |
Quick Reference — 1 GB equals:
| Unit | Value |
|---|---|
| Bit (b) | 8.5899e+9 |
| Kilobit (Kb) | 8388608 |
| Megabit (Mb) | 8192 |
| Gigabit (Gb) | 8 |
| Byte (B) | 1.0737e+9 |
| Kilobyte (KB) | 1048576 |
| Megabyte (MB) | 1024 |
| Terabyte (TB) | 0.0009765625 |
| Petabyte (PB) | 9.536743164e-7 |
Common Questions
How many MB in a GB?
There are 1024 megabytes (MB) in 1 gigabyte (GB). So 1 GB = 1024 MB. This is the standard binary measurement used by operating systems and storage devices.
How many GB in a TB?
There are 1024 gigabytes (GB) in 1 terabyte (TB). So 1 TB = 1024 GB. A 1TB hard drive can store approximately 250,000 photos or 500 hours of HD video.
What is the difference between a bit and a byte?
A bit is the smallest unit of data and can be either 0 or 1. A byte consists of 8 bits. Internet speeds are usually measured in bits per second (Mbps) while file sizes are measured in bytes (MB, GB).
Why does my 1TB drive show less than 1TB?
Storage manufacturers use decimal (1000) while operating systems use binary (1024). So a manufacturer's 1TB = 1,000,000,000,000 bytes but your OS shows it as approximately 931 GB in binary measurement.