Use our free online data storage converter tool to convert between storage units like bits, bytes, kilobytes, and more, while also calculating transfer times, estimating capacity, and comparing sizes, all with support for both decimal (SI) and binary (IEC) standards—ideal for IT professionals, photographers, and anyone managing digital storage.
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| Gigabytes (GB) | Terabytes (TB) - Decimal | Tebibytes (TiB) - Binary |
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When converting data storage units, it's crucial to understand the difference between decimal (SI) and binary (IEC) systems. This distinction explains why your 1TB hard drive shows as 931GB in Windows.
A 1TB hard drive (1,000,000,000,000 bytes) equals approximately 931GiB when calculated in binary system, which is why your operating system shows less capacity than advertised.
Accurate conversions between binary (base-2) and decimal (base-10) storage units
Calculate how long it will take to transfer files at different connection speeds
See how many photos, videos, or files will fit in your storage device
Understand storage relationships with clear GB to TB conversion charts
- Alex T., Cloud Architect“This data storage converter is incredibly accurate for cloud storage planning. The GB to TB visualization helps clients understand their needs better.”
Convert numbers between binary, decimal, hexadecimal, and octal systems
Try Number Base Converter →Convert between meters, feet, inches, miles, and other length units
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Try Temperature Converter →Convert between seconds, minutes, hours, days, and other time units
Try Time Converter →Always check if your OS uses binary or decimal when planning storage
Consider transfer speeds when moving large amounts of data
Account for 10-15% overhead for file system formatting
Use the comparison tool to understand relative storage sizes