Convert between data size units
Our Data Size Converter translates digital data capacities and file storage units across bits, bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and petabytes (PB). Critically, the converter clarifies the distinction between decimal SI standard prefixes (base-10: $1\text{ KB} = 1,000\text{ Bytes}$, used by hard drive manufacturers and telecommunications) and binary IEC standard prefixes (base-2: $1\text{ KiB} = 1,024\text{ Bytes}$, used by operating systems like Windows). This explains why a newly purchased 1TB hard drive displays as approximately 931 GB in Windows, helping IT administrators, developers, and consumers accurately manage storage and network quotas.
Clear comparison between Decimal SI (base-1000) and Binary IEC (base-1024) storage metrics
Covers the full digital spectrum from single bits (b) up to multi-petabyte (PB) enterprise arrays
Explains real-world storage drive capacity differences with educational clarity
Distinguishes between bits (b, network speed) and bytes (B, file size) to prevent confusion
100% free tool running locally in your browser with zero latency and no data collection
Clean, responsive interface suitable for IT technicians, system admins, and everyday users
1. Enter the data size value into the input field. 2. Select the starting unit (e.g., Megabytes, Gigabytes, or Terabytes). 3. Choose whether you want to calculate using Decimal (1000) or Binary (1024) multipliers. 4. Review the converted values across all digital storage denominations in real time.
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