File Size Converter

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File Size Converter

Convert B, KB, MB, GB, TB, PB and KiB, MiB, GiB, TiB, PiB all at once
Conversion Standard
Common Values：
Common File Sizes：
Please enter a valid non-negative number

Conversion Results

Decimal (1000)
Binary (1024)

Common Conversion Rules

Decimal: 1 KB = 1,000 B, 1 MB = 1,000 KB, 1 GB = 1,000 MB, 1 TB = 1,000 GB, 1 PB = 1,000 TB
Binary: 1 KiB = 1,024 B, 1 MiB = 1,024 KiB, 1 GiB = 1,024 MiB, 1 TiB = 1,024 GiB, 1 PiB = 1,024 TiB

Online file size converter for B, KB, MB, GB, TB and KiB, MiB, GiB

Online File Size Converter

The file size converter converts between common storage units for checking file sizes, disk capacity, memory capacity and network data sizes.

Decimal Units

Decimal units such as KB, MB, GB and TB normally use powers of 1000. For example, 1 MB equals 1000 KB and 1 GB equals 1000 MB.

Binary Units

Binary units such as KiB, MiB, GiB and TiB use powers of 1024. For example, 1 MiB equals 1024 KiB and 1 GiB equals 1024 MiB.

Why Are MB and MiB Different?

MB and MiB use different conversion standards, so their exact byte values are different. When checking operating system, storage manufacturer or software capacity values, make sure you know which unit is being used.

What is a file size converter?

A file size converter converts values between bytes and storage units such as KB, MB, GB and TB. Decimal units normally use 1000-based conversion, while binary units such as KiB, MiB and GiB use 1024-based conversion.
  • Supports decimal storage units including B, KB, MB, GB, TB and PB
  • Supports binary units including KiB, MiB, GiB and TiB
  • Supports both 1000-based and 1024-based conversion standards
  • Enter one value to view results in multiple target units
  • Useful for converting disk, memory, file, download and storage sizes
MB and MiB are different units. MB commonly represents 10^6 bytes, while MiB represents 2^20 bytes. Using the correct unit helps avoid confusion when comparing file and storage sizes.
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