Gigabytes to Terabytes Conversion Chart
Reference chart converting gigabytes (GB) to terabytes (TB). Covers common drive sizes, download totals, and data plan thresholds.
For a custom value not in this chart, use the interactive Gigabyte to Terabyte converter.
| Gigabyte (GB) | Terabyte (TB) |
|---|---|
| 1 GB | 0.001 TB |
| 5 GB | 0.005 TB |
| 10 GB | 0.01 TB |
| 25 GB | 0.025 TB |
| 50 GB | 0.05 TB |
| 100 GB | 0.1 TB |
| 128 GB | 0.128 TB |
| 250 GB | 0.25 TB |
| 256 GB | 0.256 TB |
| 500 GB | 0.5 TB |
| 512 GB | 0.512 TB |
| 750 GB | 0.75 TB |
| 1000 GB | 1 TB |
| 1500 GB | 1.5 TB |
| 2000 GB | 2 TB |
| 2048 GB | 2.048 TB |
| 3000 GB | 3 TB |
| 4000 GB | 4 TB |
| 5000 GB | 5 TB |
| 8000 GB | 8 TB |
| 10000 GB | 10 TB |
| 16000 GB | 16 TB |
Conversion Formula
TB = GB ÷ 1,000 (decimal / SI — storage manufacturers, macOS) GB = TB × 1,000 TiB = GiB ÷ 1,024 (binary / IEC — traditional Windows, RAM) Example: 500 GB ÷ 1,000 = 0.5 TB Common drive sizes: 256 GB = 0.256 TB (budget laptop SSD) 500 GB = 0.5 TB (mid-range SSD) 1,000 GB = 1 TB (standard desktop HDD / SSD) 2,000 GB = 2 TB (common NAS/backup drive) 4,000 GB = 4 TB (large storage drive) Note: a '1 TB' drive holds exactly 1,000 GB by decimal definition. Windows (binary) may show it as ~931 GiB.
Frequently Asked Questions
How many GB is 1 TB?
In the decimal system: 1 TB = 1,000 GB exactly. In the binary system: 1 TiB = 1,024 GiB. Storage manufacturers, cloud services, and macOS use decimal; some versions of Windows use binary, making a 1 TB drive appear as ~931 GB in File Explorer.
How many GB is 2 TB?
2 TB = 2,000 GB (decimal). This is the capacity of a common external hard drive or NAS volume. It equals 2,000,000 MB or 2,000,000,000,000 bytes.
How do I convert GB to TB quickly?
Divide the GB value by 1,000. Examples: 500 GB ÷ 1,000 = 0.5 TB. 2,500 GB ÷ 1,000 = 2.5 TB. 750 GB ÷ 1,000 = 0.75 TB.
Is 1,024 GB equal to 1 TB or 1 TiB?
1,024 GiB = 1 TiB (tebibyte) in the binary IEC standard. In the decimal system, 1 TB = 1,000 GB. The 1,024 figure comes from binary counting (2¹⁰ = 1,024). Modern storage uses decimal; RAM and some software still uses binary.
How many GB do I need for 4K video storage?
4K video at typical streaming bitrates (50–80 Mbps) consumes roughly 22–36 GB per hour. At a high quality 100 Mbps (cinema production) rate: about 45 GB per hour. A 1 TB drive holds approximately 28–45 hours of 4K streaming-quality video.
Related Converters
Related Charts
Related Guides
Need a custom value?
This chart covers common values. For any number, use the interactive converter.
Use the interactive converter →All conversion values are calculated using internationally recognized conversion factors. Results are provided for general informational purposes — verify critical values independently. Read our full disclaimer.