What is the difference between a gigabyte and a gibibyte?

A gigabyte (GB) is 1,000,000,000 bytes (10^9). A gibibyte (GiB) is 1,073,741,824 bytes (2^30). GiB is the binary unit used by operating systems like Linux and macOS; GB is the decimal unit used by storage manufacturers.

How many kilobytes are in one gibibyte?

Exactly 1,048,576 KB. This is 2^20, or 1024 × 1024. So 1 GiB = 1,024 MiB = 1,048,576 KB = 1,073,741,824 bytes.

Why does Windows show less space than the drive label?

Drive manufacturers use decimal GB (1,000,000,000 bytes), while Windows reports in binary GiB (1,073,741,824 bytes). A 1 TB drive (decimal) shows as about 931 GiB in Windows.

Does this converter use binary or decimal kilobytes?

Binary kilobytes: 1 KB = 1,024 bytes. This is the standard used in computing contexts. The conversion is 1 GiB = 1,048,576 KB.

Can I convert gibibytes back to kilobytes?

Yes. Use the swap button to reverse the direction, then enter your GiB value to get kilobytes.

Kilobytes to Gibibytes Converter

Name: Kilobytes to Gibibytes Converter
Availability: InStock
Author: Nham Vu

Convert kilobytes (KB) to gibibytes (GiB) using the exact binary factor: 1 GiB = 1,048,576 KB.

Enter Value

Kilobytes (KB)

Result

Enter a value to see the result

Common KB → GiB Reference

Kilobytes (KB)	Gibibytes (GiB)	Description
1,024	0.000977	1 MiB
1,048,576	1	1 GiB (= 1,073,741,824 bytes)
2,097,152	2	2 GiB RAM
4,194,304	4	4 GiB RAM
8,388,608	8	8 GiB RAM
16,777,216	16	16 GiB RAM
33,554,432	32	32 GiB RAM
67,108,864	64	64 GiB RAM

Summary

Convert kilobytes (KB) to gibibytes (GiB) using the exact binary factor: 1 GiB = 1,048,576 KB.

How it works

Enter a kilobyte value in the input field.
The converter divides by 1,048,576 (2^20) to get gibibytes.
The result updates instantly as you type.
Copy the result with one click or use the swap button to reverse the conversion.
View the full formula and a reference table of common sizes below.

Use cases

Convert RAM or cache sizes reported in KB to GiB for system specs.
Translate filesystem partition sizes from KB to GiB.
Verify storage calculations in operating systems that report in binary units.
Cross-check disk image sizes between tools that use different unit conventions.
Work with network file transfer sizes given in kilobytes.

Frequently Asked Questions

Last updated: 2026-07-23 · Reviewed by Nham Vu