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Advanced Data Storage Calculator

Free Online Data Storage Converter

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.

Data Storage Calculator
Convert between different storage units and calculate various storage-related metrics

Conversion Result

Enter valid values to see conversion result

GB to TB Conversion Chart
Visual representation of Gigabytes to Terabytes conversion (both decimal and binary)
Gigabytes (GB)Terabytes (TB) - DecimalTebibytes (TiB) - Binary

Key Insights

  • 1000 GB = 1 TB (decimal) = 0.909 TiB (binary)
  • The difference between TB and TiB grows with larger values
  • This explains why a 1TB drive shows as ~931GB in Windows
Understanding MB vs MiB: Binary vs Decimal Systems

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.

Decimal System (SI Units)

  • 1 KB (Kilobyte) = 1,000 bytes
  • 1 MB (Megabyte) = 1,000,000 bytes
  • 1 GB (Gigabyte) = 1,000,000,000 bytes
  • Used by: Storage manufacturers, network speeds, most consumer applications

Binary System (IEC Units)

  • 1 KiB (Kibibyte) = 1,024 bytes
  • 1 MiB (Mebibyte) = 1,048,576 bytes
  • 1 GiB (Gibibyte) = 1,073,741,824 bytes
  • Used by: Operating systems, memory (RAM), technical computing

Why This Matters:

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.

Why Choose Our Data Storage Converter?

Binary & Decimal Conversion

Accurate conversions between binary (base-2) and decimal (base-10) storage units

Transfer Time Calculations

Calculate how long it will take to transfer files at different connection speeds

Storage Capacity Estimation

See how many photos, videos, or files will fit in your storage device

Visual Charts & Tables

Understand storage relationships with clear GB to TB conversion charts

What Our Users Say
Join thousands of IT professionals who rely on our data storage converter

This data storage converter is incredibly accurate for cloud storage planning. The GB to TB visualization helps clients understand their needs better.

- Alex T., Cloud Architect
Frequently Asked Questions
Get answers to common questions about data storage and conversions
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Quick Storage Reference
1 TB ≈ 931 GiB
1 GB = 1024 MB
1 PB = 1000 TB
1hr 4K ≈ 20 GB
1 song ≈ 5 MB
1 eBook ≈ 2 MB
Pro Tips

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