How many KB are in a GB?

For decimal units, 1 GB is exactly 1,000,000 kB: a kB is 1,000 bytes and a GB is 1,000,000,000 bytes. For binary units, 1 GiB is exactly 1,048,576 KiB: a KiB is 1,024 bytes and a GiB is 1,073,741,824 bytes. One GiB is also exactly 1,024 MiB. Software can use ambiguous KB or GB labels for binary counts; its documented convention or byte quantity is needed to decide. This page opens on the explicit binary names; the decimal pair is in the same menus.

What is the formula for KB to GB?

For binary units, GiB = KiB / 1,048,576, equivalent to dividing by 1,024 twice through MiB. Decimal-rational arithmetic uses the exact power-of-two definitions: 1,048,576 KiB = 1 GiB. The display still rounds when an output exceeds twelve significant digits, even if its decimal terminates. For the decimal pair, choose Kilobyte and Gigabyte: GB = kB / 1,000,000.

What is 500,000 KB in GB?

The convention determines the answer: 500,000 KiB displays as 0.476837158203 GiB, while 500,000 decimal kB is exactly 0.5 GB. For binary inputs, 250,000 KiB gives 0.238418579102 GiB, 1,000,000 KiB gives 0.953674316406 GiB, 1,500,000 KiB gives 1.43051147461 GiB and 4,000,000 KiB gives 3.81469726563 GiB. Exact whole examples are 1,048,576 KiB = 1 GiB, 2,097,152 KiB = 2 GiB and 5,242,880 KiB = 5 GiB; other fractional values can also have short exact displays.

One KiB is exactly 1/1,048,576 GiB, or 0.00000095367431640625 GiB. Its displayed result is 9.53674316406e-7 GiB, rounded to twelve significant digits. The same byte quantity is exactly 1,024 bytes, 1.024 kB and 0.000001024 GB. In the decimal pair, 1 kB is exactly 0.000001 GB. In reverse, 1 GiB = 1,048,576 KiB, while 1 GB = 1,000,000 kB.

What is the difference between KB and KiB, or GB and GiB?

A kB is exactly 1,000 bytes and a KiB exactly 1,024; a GB is exactly 1,000,000,000 bytes and a GiB exactly 1,073,741,824. Equal numeric counts of KiB have 2.4% more bytes than kB, and equal counts of GiB have 7.3741824% more than GB. For an identical byte quantity, the larger unit gives a smaller numeric count: 1 GiB = 1.073741824 GB. A stated 1 decimal TB quantity displays as 931.322574615 GiB. Software may label that binary figure as GB, but unit conversion cannot establish usable capacity, formatting, reserved space or data loss.

Can I convert GB back to KB here?

Yes. Swap units reverses the current binary pair to GiB into KiB: 1 GiB gives 1,048,576 KiB and 2 GiB gives 2,097,152 KiB. One GiB also gives 1,024 MiB and 1,073,741,824 bytes. For decimal GB into kB, choose Gigabyte and Kilobyte: 1 GB gives 1,000,000 kB. Both menus allow other digital targets while preserving the typed scalar; changing From reinterprets it. Copy result copies the displayed headline without digit-grouping commas; each visible conversion row has its own Copy button. Displayed and copied values round to twelve significant digits. If native copying fails, a complete selectable summary identifies the input, selected pair and conventions and includes every unit in the category, including uncommon units.

Why does the page open on kibibytes when I last converted something else?

This focused page opens on Kibibyte and Gibibyte, while preserving the main converter’s saved unit pair. When storage is usable, a saved value and uncommon-unit preference can travel between pages. Its suffix must still match From. Valid deliberate scalar edits can save those fields after a short delay; invalid or incomplete drafts preserve the saved record. Unusable or conflicting records remain until you use Forget saved settings, which keeps the current conversion on screen. Your input and converted values are calculated in the browser and are not uploaded by the converter. The definitions arrive with the page, so conversion needs no external data lookup and keeps working offline after the page has loaded. The core conversion needs no account.

KB to GB Converter

This page opens on Kibibyte (KiB) and Gibibyte (GiB), the explicit binary pair: GiB = KiB / 1,048,576. Thus 500,000 KiB displays as 0.476837158203 GiB, 1,000,000 KiB as 0.953674316406 GiB and 2,097,152 KiB as exactly 2 GiB. For decimal quantities, choose Kilobyte (kB) and Gigabyte (GB): GB = kB / 1,000,000. A bare KB or GB software label does not establish which convention was used; check its byte count or documentation. Results update as you type and round to twelve significant digits. One KiB displays as 9.53674316406e-7 GiB, while the same bytes are exactly 1.024 kB and 0.000001024 GB. The other digital units are listed below, and Swap units reverses the selected pair.

From

To9.53674316406e-7

Category: Digital storage

Base unit: byte

kB, MB, GB and TB use powers of 1,000; KiB, MiB, GiB and TiB use powers of 1,024. One byte is eight bits; labels used by other software may differ.

Results round to 12 significant digits using the listed unit definitions. Input must have a finite numeric magnitude and at most 512 significant digits. Type a single decimal or scientific number; a matching From unit suffix is accepted. Commas and grouped spaces separate thousands; decimal commas, fractions and compound measurements are refused.

1 KiB in every digital storage unit

Bitbit
8,192
ByteB
1,024
KilobytekB
1.024
MegabyteMB
0.001024
GigabyteGB
0.000001024
TerabyteTB
1.024e-9
MebibyteMiB
0.0009765625
GibibyteGiB
9.53674316406e-7
TebibyteTiB
9.31322574615e-10

Selectable complete conversion

Unit Converter — Digital storage
Input: 1 (Kibibyte, KiB)
Result: 9.53674316406e-7 GiB (Gibibyte)
Displayed values round to 12 significant digits.
kB, MB, GB and TB use powers of 1,000; KiB, MiB, GiB and TiB use powers of 1,024. One byte is eight bits; labels used by other software may differ.
All other units:
Bit (bit): 8192
Byte (B): 1024
Kilobyte (kB): 1.024
Megabyte (MB): 0.001024
Gigabyte (GB): 0.000001024
Terabyte (TB): 1.024e-9
Mebibyte (MiB): 0.0009765625
Gibibyte (GiB): 9.53674316406e-7
Tebibyte (TiB): 9.31322574615e-10

Common questions

How many KB are in a GB?: For decimal units, 1 GB is exactly 1,000,000 kB: a kB is 1,000 bytes and a GB is 1,000,000,000 bytes. For binary units, 1 GiB is exactly 1,048,576 KiB: a KiB is 1,024 bytes and a GiB is 1,073,741,824 bytes. One GiB is also exactly 1,024 MiB. Software can use ambiguous KB or GB labels for binary counts; its documented convention or byte quantity is needed to decide. This page opens on the explicit binary names; the decimal pair is in the same menus.
What is the formula for KB to GB?: For binary units, GiB = KiB / 1,048,576, equivalent to dividing by 1,024 twice through MiB. Decimal-rational arithmetic uses the exact power-of-two definitions: 1,048,576 KiB = 1 GiB. The display still rounds when an output exceeds twelve significant digits, even if its decimal terminates. For the decimal pair, choose Kilobyte and Gigabyte: GB = kB / 1,000,000.
What is 500,000 KB in GB?: The convention determines the answer: 500,000 KiB displays as 0.476837158203 GiB, while 500,000 decimal kB is exactly 0.5 GB. For binary inputs, 250,000 KiB gives 0.238418579102 GiB, 1,000,000 KiB gives 0.953674316406 GiB, 1,500,000 KiB gives 1.43051147461 GiB and 4,000,000 KiB gives 3.81469726563 GiB. Exact whole examples are 1,048,576 KiB = 1 GiB, 2,097,152 KiB = 2 GiB and 5,242,880 KiB = 5 GiB; other fractional values can also have short exact displays.
What is 1 KB in GB?: One KiB is exactly 1/1,048,576 GiB, or 0.00000095367431640625 GiB. Its displayed result is 9.53674316406e-7 GiB, rounded to twelve significant digits. The same byte quantity is exactly 1,024 bytes, 1.024 kB and 0.000001024 GB. In the decimal pair, 1 kB is exactly 0.000001 GB. In reverse, 1 GiB = 1,048,576 KiB, while 1 GB = 1,000,000 kB.
What is the difference between KB and KiB, or GB and GiB?: A kB is exactly 1,000 bytes and a KiB exactly 1,024; a GB is exactly 1,000,000,000 bytes and a GiB exactly 1,073,741,824. Equal numeric counts of KiB have 2.4% more bytes than kB, and equal counts of GiB have 7.3741824% more than GB. For an identical byte quantity, the larger unit gives a smaller numeric count: 1 GiB = 1.073741824 GB. A stated 1 decimal TB quantity displays as 931.322574615 GiB. Software may label that binary figure as GB, but unit conversion cannot establish usable capacity, formatting, reserved space or data loss.
Can I convert GB back to KB here?: Yes. Swap units reverses the current binary pair to GiB into KiB: 1 GiB gives 1,048,576 KiB and 2 GiB gives 2,097,152 KiB. One GiB also gives 1,024 MiB and 1,073,741,824 bytes. For decimal GB into kB, choose Gigabyte and Kilobyte: 1 GB gives 1,000,000 kB. Both menus allow other digital targets while preserving the typed scalar; changing From reinterprets it. Copy result copies the displayed headline without digit-grouping commas; each visible conversion row has its own Copy button. Displayed and copied values round to twelve significant digits. If native copying fails, a complete selectable summary identifies the input, selected pair and conventions and includes every unit in the category, including uncommon units.
Why does the page open on kibibytes when I last converted something else?: This focused page opens on Kibibyte and Gibibyte, while preserving the main converter’s saved unit pair. When storage is usable, a saved value and uncommon-unit preference can travel between pages. Its suffix must still match From. Valid deliberate scalar edits can save those fields after a short delay; invalid or incomplete drafts preserve the saved record. Unusable or conflicting records remain until you use Forget saved settings, which keeps the current conversion on screen. Your input and converted values are calculated in the browser and are not uploaded by the converter. The definitions arrive with the page, so conversion needs no external data lookup and keeps working offline after the page has loaded. The core conversion needs no account.

Results round to 12 significant digits using the listed unit conventions. Many factors are exact definitions; psi and parsec use rounded coefficients. Temperature includes scale offsets. Days and weeks are fixed-duration units, and unit conversion does not determine calendar dates, ambient pressure or a software label’s convention.