How to Convert Gigabytes to Kibibytes (GB to KiB)
Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes. This guide shows how to convert gigabytes into kibibytes by hand, with examples and a quick-reference table.
The conversion
To convert gigabytes to kibibytes, multiply the value by 976,562.5. To go the other way, divide by the same number (or multiply by 1.024000e-06). For a quick estimate, multiply by about 980,000.
Kibibytes = gigabytes × 976,562.5
Worked examples
- 3 GB = 2,929,687.5 KiB
- 12.5 GB = 12,207,031.25 KiB
- 75 GB = 73,242,187.5 KiB
Gigabytes to Kibibytes table
| Gigabytes | Kibibytes |
|---|---|
| 1 GB | 976,562.5 KiB |
| 2 GB | 1,953,125 KiB |
| 5 GB | 4,882,812.5 KiB |
| 10 GB | 9,765,625 KiB |
| 20 GB | 19,531,250 KiB |
| 25 GB | 24,414,062.5 KiB |
| 50 GB | 48,828,125 KiB |
| 100 GB | 97,656,250 KiB |
| 250 GB | 244,140,625 KiB |
| 500 GB | 488,281,250 KiB |
| 1,000 GB | 976,562,500 KiB |
Common questions
Is GB to KiB exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Kibibytes to Gigabytes converter.
Mistakes to avoid
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Background
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
For any value, use the Gigabytes to Kibibytes Converter or browse all data storage converters.
Run your own numbers: Gigabytes to Kibibytes Converter