Quick Answer: Gigabytes to Gigabits
One gigabyte equals 8 gigabits (1 GB = 8 Gb).
Conversely, 1 Gb = 0.125 GB.
Formula: Gb = GB × 8
Worked examples
- 1 GB = 8 Gb
- 5 GB = 40 Gb
- 10 GB = 80 Gb
Method and limitations
To convert gigabytes to gigabits, multiply by 8. Calculations use full-precision constants; answers in this box are rounded for readability (≈ marks a rounded value) and the calculator shows up to 9 significant figures.
Each factor is exact by definition, derived from exact definitions, or a documented conventional value — see the methodology and sources.
Conversion Formula
To convert gigabytes to gigabits, multiply by 8.
Step-by-Step Conversion Guide
Follow these steps to convert gigabytes to gigabits manually:
Start with your value in gigabytes
Example: You want to convert 10 GB
Apply the conversion formula
Use the formula: Gb = GB × 8
Calculate the result
10 GB = 80 Gb
Verify your answer
Use our calculator above to double-check your manual calculation.
Quick Mental Math Tip
To convert gigabytes to gigabits, multiply by 8.
Common Conversions
| Gigabytes (GB) | Gigabits (Gb) | Gigabits → Gigabytes |
|---|---|---|
| 1 GB | 8 | 1 Gb = 0.125 GB |
| 5 GB | 40 | 5 Gb = 0.625 GB |
| 10 GB | 80 | 10 Gb = 1.25 GB |
| 25 GB | 200 | 25 Gb = 3.125 GB |
| 50 GB | 400 | 50 Gb = 6.25 GB |
| 100 GB | 800 | 100 Gb = 12.5 GB |
| 500 GB | 4,000 | 500 Gb = 62.5 GB |
| 1000 GB | 8,000 | 1000 Gb = 125 GB |
Did You Know?
Data storage units follow a binary system (1024) in computing but a decimal system (1000) in marketing — this is why your "500 GB" drive shows less space.
Popular Gigabytes to Gigabits Conversions
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Frequently Asked Questions
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Conversion factors on this page are either exact by definition, derived from exact definitions, or conventional values in documented use. Each is listed with its source in our conversion methodology and sources, which cites the BIPM SI Brochure, NIST Special Publication 811 and the relevant IEC or national standards. Results are rounded for display only; calculations use full precision.