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Data Size Converter

Convert between bytes, KB, MB, GB, TB and other data storage units

Convert Data Size

Common File Sizes

Text document ~50 KB
High-res photo ~5 MB
Music track (MP3) ~4 MB
HD video (1 hour) ~3 GB
DVD movie ~8 GB
4K movie ~100 GB

Data Units

Decimal Units (SI)

KB, MB, GB, TB - Based on powers of 1000. Used by storage manufacturers.

Binary Units (IEC)

KiB, MiB, GiB, TiB - Based on powers of 1024. Used by operating systems.

Basic Units

Bit (smallest unit), Byte (8 bits)

About Data Size Conversion

Decimal vs Binary

  • 1 KB = 1,000 bytes (decimal)
  • 1 KiB = 1,024 bytes (binary)
  • 1 MB = 1,000,000 bytes
  • 1 MiB = 1,048,576 bytes
  • Storage vendors use decimal units
  • Operating systems often use binary

Common Uses

  • File sizes: Documents, photos, videos
  • Storage: Hard drives, memory cards, USB
  • Internet: Download sizes and data limits
  • Memory: RAM and cache specifications

Size Progression

  • Byte: Single character
  • Kilobyte: Small text file
  • Megabyte: Digital photo
  • Gigabyte: Movie or game
  • Terabyte: Large media collection
  • Petabyte: Data centre storage

Technical Notes

  • Results handle both decimal and binary systems
  • Large values displayed in scientific notation
  • Precision maintained for technical calculations
  • 1 byte = 8 bits (fundamental relationship)