GB to TB Converter

Convert GB to TB (and TB to GB): Clear, Accurate, and Instant

Use our free converter to convert GB to TB and convert TB to GB in one click. Choose between decimal (1000-based, SI) and binary (1024-based, IEC) calculations for accurate storage sizing. Perfect for comparing drive labels, cloud storage, server capacity, and backup planning.

What’s the difference between 1000 and 1024?

• Decimal (SI): 1 TB = 1000 GB. Many manufacturers and marketing materials use decimal.
• Binary (IEC): 1 TiB = 1024 GiB. Operating systems and technical tools often display binary values.
• If your OS shows less capacity than the drive’s label, it’s usually 1000 vs 1024 math—not lost space.

Formulas to convert GB to TB

For decimal (SI):

TB = GB ÷ 1000

For binary (IEC):

TiB = GiB ÷ 1024

The reverse direction is just multiplication by 1000 or 1024.

Examples: convert GB to TB

• 500 GB (decimal) → 0.5 TB
• 1024 GB (binary as GiB) → 1 TiB
• 2048 GB (decimal) → 2 TB

Examples: convert TB to GB

• 1 TB (decimal) → 1000 GB
• 1 TiB (binary) → 1024 GiB
• 2 TB (decimal) → 2000 GB

GB vs GiB and TB vs TiB

In casual use, people say “GB” and “TB” for everything. But strictly speaking: GB/TB are decimal (×1000), while GiB/TiB are binary (×1024). This converter supports both so your results match what your OS or vendor displays.

FAQ