Mb to Gb Converter
Convert megabytes to gigabytes instantly. Free MB to GB storage converter for file sizes.
Formula
GB = MB / 1024
Common Conversions
How to Convert MB to GB
1 GB = 1,024 MB (binary, IEC standard) or 1,000 MB (decimal, marketing standard). Most operating systems use binary (1 GB = 1,024 MB); most storage manufacturers and ISPs use decimal (1 GB = 1,000 MB), which is why a '1 TB' drive shows as 931 GB in your OS.
Practical conversion: divide MB by 1,024 (or 1,000). So 5,120 MB = 5 GB binary, or 5.12 GB decimal. The choice usually doesn't matter for ordinary use but does explain the 'missing storage' that confuses people when checking new drives. A 64 GB phone often shows ~58 GB in OS due to binary conversion plus system files.
Common MB to GB
| Megabytes | Gigabytes (binary) | Gigabytes (decimal) |
|---|---|---|
| 100 MB | 0.098 GB | 0.1 GB |
| 500 MB | 0.488 GB | 0.5 GB |
| 1024 MB | 1 GB | 1.024 GB |
| 2048 MB | 2 GB | 2.048 GB |
| 5120 MB | 5 GB | 5.12 GB |
| 10240 MB | 10 GB | 10.24 GB |
| 51200 MB | 50 GB | 51.2 GB |
| 102400 MB | 100 GB | 102.4 GB |
Frequently Asked Questions
Why does my new 500 GB drive show as 465 GB?
The drive manufacturer used decimal (1 GB = 10^9 bytes), but your OS uses binary (1 GiB = 2^30 bytes = 1.074 × 10^9 bytes). 500 × 10^9 / 2^30 = 465.66 GiB. The 'missing' 35 GB is real to the marketing definition; the binary GiB is what your OS reports.
Should I use MB or MiB?
Strictly, MiB (mebibyte = 2^20) = 1,048,576 bytes. MB (megabyte) usually = 10^6 = 1,000,000 bytes (decimal). Most consumers use MB for both; technically rigorous specifications use MiB for binary.
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