Byte Converter
Convert between different data size units (KB, MB, GB, etc.)
Data Measurement Units
About Data Size Conversions
Decimal vs Binary Units
Data size units have two different measurement systems:
- Decimal (SI): 1 KB = 1000 bytes, 1 MB = 1000 KB, etc. Disk manufacturers typically use this system.
- Binary (IEC): 1 KiB = 1024 bytes, 1 MiB = 1024 KiB, etc. Operating systems and applications typically use this system.
Unit Conversion Formulas
- Decimal: Conversion between units is done with 10^3 (1000).
- Binary: Conversion between units is done with 2^10 (1024).
Basic Units
Decimal (SI)
- 1 KB = 1,000 B
- 1 MB = 1,000,000 B
- 1 GB = 1,000,000,000 B
Binary (IEC)
- 1 KiB = 1,024 B
- 1 MiB = 1,048,576 B
- 1 GiB = 1,073,741,824 B
Difference
- 1 MB ≈ 0.954 MiB
- 1 GB ≈ 0.931 GiB
- 1 TB ≈ 0.909 TiB
Relationship Between Units
| Unit | Symbol | Decimal (1000) | Binary (1024) |
|---|---|---|---|
| Byte | B | 1 B | 1 B |
| Kilobyte / Kibibyte | KB / KiB | 10^3 B | 2^10 B |
| Megabyte / Mebibyte | MB / MiB | 10^6 B | 2^20 B |
| Gigabyte / Gibibyte | GB / GiB | 10^9 B | 2^30 B |
| Terabyte / Tebibyte | TB / TiB | 10^12 B | 2^40 B |
| Petabyte / Pebibyte | PB / PiB | 10^15 B | 2^50 B |