Quick answer: 1 Gigabyte (GB) in Kilobyte (KB)
1 GB equals 1048576 KB. To convert Gigabyte (GB) to Kilobyte (KB), multiply by 1048576 using the free calculator above — no signup needed.
Digital Data & Storage units
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About Digital Data & Storage Converter
The Digital Data & Storage Converter converts between 9 different units, including Byte (B), Bit (b), Kilobyte (KB), Megabyte (MB), Gigabyte (GB). The base unit is the Byte (B), and every other unit on this page is defined as an exact multiple of it. Type any value into the calculator above to convert instantly — free, unlimited, no signup and nothing to install.
Common equivalents: 1 Byte (B) = 8 Bit (b), 0.000976563 Kilobyte (KB), 0.00000095367431640625 Megabyte (MB).
Scale of this category: the smallest unit is the Bit (b) (b) and the largest is the Petabyte (PB) (PB).
Last updated: 2026-09-15
Digital Data & Storage conversion factors
| Unit | Symbol | Value in Byte (B) |
|---|---|---|
| Byte (B) | B | 1 B = 1 B |
| Bit (b) | b | 1 b = 0.125 B |
| Kilobyte (KB) | KB | 1 KB = 1024 B |
| Megabyte (MB) | MB | 1 MB = 1048576 B |
| Gigabyte (GB) | GB | 1 GB = 1073741824 B |
| Terabyte (TB) | TB | 1 TB = 1099511627776 B |
| Petabyte (PB) | PB | 1 PB = 1125899906842624 B |
| Megabit (Mb) | Mb | 1 Mb = 131072 B |
| Gigabit (Gb) | Gb | 1 Gb = 134217728 B |
Worked Examples
See exactly how the conversion works with real numbers, step by step.
How much is 1 Gigabyte (GB) in Kilobyte (KB)?
- Multiply 1 by the conversion factor 1048576
- 1 Gigabyte (GB) = 1048576 Kilobyte (KB)
How much is 5 Gigabyte (GB) in Kilobyte (KB)?
- Multiply 5 by the conversion factor 1048576
- 5 Gigabyte (GB) = 5242880 Kilobyte (KB)
How much is 25 Gigabyte (GB) in Kilobyte (KB)?
- Multiply 25 by the conversion factor 1048576
- 25 Gigabyte (GB) = 26214400 Kilobyte (KB)
Quick Conversion Reference Table
| Gigabyte (GB) (GB) | Kilobyte (KB) (KB) |
|---|---|
| 1 GB (Gigabyte (GB)) | 1048576 KB (Kilobyte (KB)) |
| 2 GB (Gigabyte (GB)) | 2097152 KB (Kilobyte (KB)) |
| 5 GB (Gigabyte (GB)) | 5242880 KB (Kilobyte (KB)) |
| 10 GB (Gigabyte (GB)) | 10485760 KB (Kilobyte (KB)) |
| 20 GB (Gigabyte (GB)) | 20971520 KB (Kilobyte (KB)) |
| 50 GB (Gigabyte (GB)) | 52428800 KB (Kilobyte (KB)) |
| 100 GB (Gigabyte (GB)) | 104857600 KB (Kilobyte (KB)) |
| 500 GB (Gigabyte (GB)) | 524288000 KB (Kilobyte (KB)) |
| 1000 GB (Gigabyte (GB)) | 1048576000 KB (Kilobyte (KB)) |
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How to Use This Converter
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FAQ
How much is 1 Gigabyte (GB) in Kilobyte (KB)?
1 Gigabyte (GB) = 1048576 Kilobyte (KB).
How do I convert Gigabyte (GB) to Kilobyte (KB)?
Enter your value in Gigabyte (GB) into the converter above and the result in Kilobyte (KB) appears instantly. 1 GB equals 1048576 KB — just multiply your value by 1048576.
What is the formula for Gigabyte (GB) to Kilobyte (KB)?
The formula is: value in Kilobyte (KB) = value in Gigabyte (GB) × 1048576. For example, 5 GB × 1048576 = 5242880 KB.
Is this Gigabyte (GB) to Kilobyte (KB) converter free and accurate?
Yes. This Gigabyte (GB) to Kilobyte (KB) converter is 100% free, uses the exact international conversion factor (1048576), and works on any device with no signup.
How do I convert Kilobyte (KB) back to Gigabyte (GB)?
To convert back, divide by 1048576 (or multiply by 0.00000095367431640625). You can also use our dedicated How Many Gigabyte (GB) in 1 Kilobyte (KB)? page for instant results.
Do I need to download an app or sign up?
No. The converter runs entirely in your browser — nothing to install, no account, no fees. It even keeps working offline once the page has loaded.
Which Digital Data & Storage units are supported?
This converter supports 9 units: Byte (B), Bit (b), Kilobyte (KB), Megabyte (MB), Gigabyte (GB), Terabyte (TB), Petabyte (PB), Megabit (Mb), Gigabit (Gb).