Gigabytes (GB) to Kibibytes (KiB) Converter
Enter your Gigabytes (GB) value to convert to Kibibytes (KiB). 1 GB = 976,562.5 KiB, calculated across both decimal (SI) and binary (IEC) standards.
Convert Gigabytes to Kibibytes
Do you want to convert kibibytes to gigabytes?
How to Convert Gigabytes to Kibibytes
To convert gigabytes (decimal/SI) to kibibytes (binary/IEC), multiply by 976,562.5. Decimal units use base 1,000, while binary units use base 1,024. Learn more: Kibibytes to GB calculator.
GB is a decimal (SI) unit—what storage manufacturers advertise. 1 GB = 1,000 of the smaller unit. Check out our GB to Petabits converter.
KiB is a binary (IEC) unit—what operating systems often display. 1 KiB = 1,024 of the smaller unit. Learn more: Exabytes to Kibibytes conversion.
1 GB = 976,562.5 KiB (using SI decimal standard) — which means there are 976,562.5kibibytes in every gigabyte.
GB to KiB Conversion Formula
// Convert GB to KiB
KiB = GB × 976,562.5
// Reverse: Convert KiB to GB
GB = KiB × 0.000001024
GB to KiB Conversion Examples
100 GB = 97,656,250 KiB
256 GB = 250,000,000 KiB
500 GB = 488,281,250 KiB
1,000 GB = 976,562,500 KiB
2,048 GB = 2,000,000,000 KiB
What Is a Gigabyte?
A gigabyte is 1,000 megabytes or 1,000,000,000 bytes using the SI decimal standard. This is what hard drive manufacturers typically use. Try the convert Kibibits to Yobibits.
The gigabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. You might also need: Yobibits Per Second to Bits Per Second calculator.
Common uses: Movies, video games, smartphone storage, USB drives, cloud storage plans You might also need: Gigabytes to Exbibits converter.
1 GB = 8 × 10⁹ bits = 1 × 10⁹ bytes.
The gigabyte can be abbreviated as GB; for example, 1 gigabyte can be written as 1 GB.
What Is a Kibibyte?
A kibibyte is 1,024 bytes using the IEC binary standard. More accurately represents computer memory addressing. Check out our Pebibits to Kibibytes.
The kibibyte is a IEC binary unit of digital information storage. It uses base 1,024 following the IEC (International Electrotechnical Commission) standard. See also: PB → PiB.
Common uses: RAM specifications, operating system file sizes, memory allocation See also: convert Tibps to Tbps.
1 KiB = 8,192 bits = 1,024 bytes.
The kibibyte can be abbreviated as KiB; for example, 1 kibibyte can be written as 1 KiB.
Gigabyte to Kibibyte Conversion Table
The table below shows various gigabyte measurements converted to kibibytes.
| Gigabytes | Kibibytes |
|---|---|
| 1 GB | 976,562.5 KiB |
| 2 GB | 1,953,125 KiB |
| 5 GB | 4,882,813 KiB |
| 10 GB | 9,765,625 KiB |
| 25 GB | 24,414,063 KiB |
| 50 GB | 48,828,125 KiB |
| 100 GB | 97,656,250 KiB |
| 128 GB | 125,000,000 KiB |
| 250 GB | 244,140,625 KiB |
| 256 GB | 250,000,000 KiB |
| 500 GB | 488,281,250 KiB |
| 512 GB | 500,000,000 KiB |
| 1,000 GB | 976,562,500 KiB |
| 1,024 GB | 1,000,000,000 KiB |
SI Decimal vs Binary: Why Two Different Standards?
When converting gigabytes to kibibytes, different tools may give slightly different results. This is because there are two competing standards for measuring digital storage:
| Standard | Base | 1 KB equals | Used By |
|---|---|---|---|
| SI Decimal | 1000 | 1,000 bytes | Hard drive manufacturers, macOS, network speeds |
| Binary (IEC) | 1024 | 1,024 bytes | Windows, Linux (partially), RAM specifications |
Why Does My Hard Drive Show Less Space Than Advertised?
This difference in standards explains the common "missing hard drive space" confusion.
Example: A "500 GB" Hard Drive
- Contains exactly: 500,000,000,000 bytes
- macOS (SI Decimal): Displays 500 GB (divides by 1,000³)
- Windows (Binary): Displays 465 GB (divides by 1,024³)
The Verdict: Same bytes, same drive—just different math. No space is actually missing.
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard at the top of the calculator.
💡 Storage Engineer Tip
The ~9.95% difference between binary and decimal units compounds at each level. A 1 TB drive shows as 931 GiB in Windows because of this standard mismatch—no space is actually lost.
— Subash Geetha Krishnan, 15+ years in enterprise storage
When to Convert GB to KiB
Common scenario: Reconciling the difference between what drive manufacturers advertise and what your operating system displays. Try the GB to Zb calculator.
Other situations include storage planning for calculating how much data fits in a given capacity, file management for understanding sizes across different scales, cost estimation for budgeting cloud storage, and backup planning for determining media requirements. Learn more: how many KiB in Megabits.