Gb to Mb Converter
Convert gigabytes to megabytes easily. Free GB to MB storage converter for file size calculations.
Formula
MB = GB × 1024
Common Conversions
How to Convert GB to MB
1 GB = 1,024 MB (binary) or 1,000 MB (decimal). Multiply GB by 1,024 (or 1,000). So 5 GB = 5,120 MB binary, or 5,000 MB decimal. The operating system standard is binary (1 GB = 1,024 MB), so when you see a file's actual size after download, it usually shows MB in binary terms.
Useful when planning storage usage for video files, large datasets, or game installs. A typical 1080p movie is 4-8 GB = 4,096-8,192 MB. A modern game is 50-150 GB = 51,200-153,600 MB. Cloud storage purchases often quote in GB; downloads complete and report progress in MB.
Common GB to MB
| Gigabytes | Megabytes (binary) | Megabytes (decimal) |
|---|---|---|
| 0.5 GB | 512 MB | 500 MB |
| 1 GB | 1024 MB | 1000 MB |
| 2 GB | 2048 MB | 2000 MB |
| 5 GB | 5120 MB | 5000 MB |
| 10 GB | 10240 MB | 10000 MB |
| 25 GB | 25600 MB | 25000 MB |
| 50 GB | 51200 MB | 50000 MB |
| 100 GB | 102400 MB | 100000 MB |
Frequently Asked Questions
How many MB in a movie?
Highly variable. A 1080p movie from a streaming service compressed: 4-8 GB. A 4K movie: 25-100 GB. A blu-ray rip: 30-50 GB. Downloads quoted in GB; progress and speed often shown in MB/sec.
What's the difference between MB/s and Mbps?
Megabytes per second vs megabits per second. 1 byte = 8 bits, so 100 Mbps = 12.5 MB/s. Internet speeds are typically advertised in Mbps; download progress shown in MB/s. Watch the case - 'MB' (capital B) is megabyte; 'Mb' (lowercase) is megabit.