My storage vendor quoted 50 TB of capacity, but my monitoring tool tracks usage in GB. What ceiling do I enter?

50 × 1,024 = 51,200 GB. Enter 51200 as the capacity ceiling.

Why is 1 TB equal to 1,024 GB here instead of 1,000 GB?

This follows the binary convention (1 TB = 1,024 GB) that operating systems and most storage monitoring tools use internally, rather than the decimal convention (1,000 GB) used in drive marketing.

How do I estimate TB to GB mentally?

Multiply by 1,000 for a rough number, then add about 2.4% for precision. Example: 4 TB × 1,000 = 4,000 (rough); the actual value is 4,096 GB.

A data center inventory lists 100 drives at 2 TB each. My monitoring software needs the total in GB — what do I enter?

Each 2 TB = 2,048 GB. For 100 drives: 100 × 2,048 = 204,800 GB total.

Terabytes (TB) to Gigabytes (GB) Converter

Enter a value to instantly convert between data storage units.

From

Precision4 dp

1 Terabyte = 1024 Gigabyte

Key Formulas

Megabyte → Gigabyte

GB = MB × 0.000976563

Gigabyte → Megabyte

MB = GB × 1024

Gigabyte → Terabyte

TB = GB × 0.000976563

Terabyte → Gigabyte

GB = TB × 1024

Formula

GB = TB × 1024

Provisioning storage or reading a spec sheet in TB but need the GB figure your monitoring tools or billing dashboard actually track? Multiply by 1,024 — the binary convention nearly every OS and storage system uses internally.

Source: JEDEC Standard 100B.01 (traditional binary convention: 1 KB = 1024 B)

Reviewed by the Convert Calc editorial team · Last reviewed: 2026-08-11 · see our methodology

Frequently Asked Questions

Real-World Examples

A 1 TB drive — exactly 1,024 GB as reported by your operating system.

1 TB = 1024 GB

A 2 TB backup volume — 2,048 GB of usable capacity.

2 TB = 2048 GB

A 0.5 TB SSD — 512 GB in the binary convention.

0.5 TB = 512 GB

A 100 TB enterprise storage array — 102,400 GB total, the figure a capacity-planning spreadsheet would use.

100 TB = 102400 GB

mb to gb gb to mb gb to tb kb to mb mb to kb

See This in Context

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