GiB to GB Converter
Instantly convert Gibibytes (GiB) to Gigabytes (GB) and vice versa. Accurate, free data storage calculator for hard drives, RAM, and file sizes.
Convert Storage Units
Enter your data size below to get an instant, precise conversion between binary Gibibytes (GiB) and decimal Gigabytes (GB).
Storage Converter
Enter the value to see the converted data size
Converted Size
Based on IEC and SI standards
Common GiB to GB Conversions
Standard conversions for quick lookup when comparing advertised storage capacity versus operating system reported capacity.
| Gibibytes (GiB) | Gigabytes (GB) | Common Use Case |
|---|---|---|
| 1 GiB | 1.07 GB | Small file or legacy RAM |
| 4 GiB | 4.29 GB | Entry-level device RAM |
| 8 GiB | 8.59 GB | Standard laptop RAM |
| 16 GiB | 17.18 GB | Modern gaming PC RAM |
| 32 GiB | 34.36 GB | High-performance workstation |
| 64 GiB | 68.72 GB | Professional content creation |
| 128 GiB | 137.44 GB | Entry-level SSD storage |
| 256 GiB | 274.88 GB | Standard laptop SSD |
| 512 GiB | 549.76 GB | Mid-range SSD storage |
| 1024 GiB (1 TiB) | 1,099.51 GB | Large external hard drive |
Data Storage Conversion FAQ
Everything you need to know about the difference between binary and decimal data storage measurements.
GB (Gigabyte) is a decimal unit equal to 1,000³ (1,000,000,000) bytes, as defined by the SI system. GiB (Gibibyte) is a binary unit equal to 1,024³ (1,073,741,824) bytes, as defined by the IEC. Therefore, 1 GiB is approximately 7.37% larger than 1 GB.
Hard drive manufacturers advertise capacity using decimal Gigabytes (GB). However, operating systems like Windows calculate and display storage using binary Gibibytes (GiB). Dividing 500,000,000,000 bytes by 1,073,741,824 results in approximately 465 GiB. No storage is actually missing; it is just a difference in measurement standards.
To convert Gibibytes (GiB) to Gigabytes (GB), multiply the GiB value by 1.073741824. For example, 16 GiB × 1.073741824 = 17.1798 GB. To convert GB to GiB, multiply by 0.9313225746.
RAM is inherently binary in its architecture, so it is technically measured in GiB. However, manufacturers often colloquially label it as ‘GB’ on packaging. Hard drives and SSDs are marketed using decimal GB, but operating systems display their usable space in GiB (often mislabelled as GB by Windows).