File Size Converter
Convert file sizes instantly between bytes, KB, MB, GB, TB and binary units like KiB, MiB, GiB, and TiB. Useful for storage, uploads, bandwidth estimates, and file size comparisons.
Convert file size
Enter a value and choose a unit to convert it across decimal and binary storage units.
Quick result
Total Bytes
1,000,000
B
Human-Friendly Approximation
1 MB
Selected Input
1 MB
Megabytes
Decimal conversions
Decimal units are based on powers of 1000.
Bytes
1,000,000
B
Kilobytes
1,000
KB
Megabytes
1
MB
Gigabytes
0.001
GB
Terabytes
0.000001
TB
Petabytes
0
PB
Binary conversions
Binary units are based on powers of 1024.
Kibibytes
976.5625
KiB
Mebibytes
0.95367432
MiB
Gibibytes
0.00093132
GiB
Tebibytes
0.00000091
TiB
Pebibytes
0
PiB
Quick examples
Tap an example to load a common file size value.
What is a file size converter?
A file size converter helps you translate values between common storage units such as bytes, kilobytes, megabytes, gigabytes, and terabytes. It is useful when comparing upload limits, storage space, download sizes, and technical specifications.
Decimal vs binary units
Decimal units use powers of 1000, such as 1 KB = 1000 bytes and 1 MB = 1000 KB. These are commonly used by storage vendors and network measurements.
Binary units use powers of 1024, such as 1 KiB = 1024 bytes and 1 MiB = 1024 KiB. These are commonly used in operating systems and technical software tools.
Common use cases
- • Convert file upload limits into readable units
- • Compare storage capacities accurately
- • Understand differences between MB and MiB
- • Estimate download or backup sizes
- • Translate bytes into human-friendly values