Convert Gigabytes (GB) to Terabytes (TB)
1 GB = 0.001 TB Two-way converter below, type in either field.
Formula
TB = GB ÷ 1,000
Why this matters
Decimal (SI) units: 1 TB = 1,000 GB = 10¹² bytes. Cloud storage tiers, drive labels, and data-cap policies all use decimal terabytes.
GB to TB reference table
| Gigabytes (GB) | Terabytes (TB) |
|---|---|
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 750 | 0.75 |
| 1,000 | 1 |
| 2,000 | 2 |
| 4,000 | 4 |
| 8,000 | 8 |
| 16,000 | 16 |
Frequently asked questions
How many GB are in 1 TB?
1 TB = 1,000 GB in decimal units. Windows displays a 1 TB drive as about 931 GiB because it counts in powers of 1,024.
How many photos or videos fit in 1 TB?
Rough guide: ~250,000 smartphone photos at 4 MB each, or ~250 hours of 1080p video at 8 GB/hour. Actual counts depend entirely on quality settings.
More data-unit converters
- Megabytes → Gigabytes GB = MB ÷ 1,000
- Kilobytes → Megabytes MB = kB ÷ 1,000
- Megabits per second → Megabytes per second MB/s = Mbps ÷ 8
- Gibibytes → Gigabytes GB = GiB × 1.073741824 (1 GiB = 1024³ bytes, 1 GB = 1000³ bytes)