At One Place

21 GB to B

21 gigabytes in bytes
21 GB = 21,000,000,000 B
B = GB × 1,000,000,000

21 gigabytes is 21,000,000,000 bytes. To get there, multiply by 1,000,000,000.

Values either side

Gigabytes near 21, converted to bytes.
Gigabytes Bytes
17 GB 17,000,000,000
18 GB 18,000,000,000
19 GB 19,000,000,000
20 GB 20,000,000,000
21 GB ← 21,000,000,000
22 GB 22,000,000,000
23 GB 23,000,000,000
24 GB 24,000,000,000
25 GB 25,000,000,000

How the conversion works

The relationship is B = GB × 1,000,000,000. Both units measure data, so the conversion is a fixed factor that never changes.

Common questions

What is 21 GB in bytes?
21 GB is 21,000,000,000 B.
How do you convert gigabytes to bytes?
Multiply by 1,000,000,000.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked