1 gigabyte (1000³) = 0.001 TB
1 GB = 0.001 TB · type math like (12*4)+6.5
GB to TB helps size backups and compare storage upgrades. If your files total several hundred gigabytes, converting tells you which drive size to buy.
Backup planning is the main reason to convert. If your laptop has 512 GB of storage and is 80% full, you have about 410 GB of data, which is 0.41 TB. A 1 TB backup drive gives room to grow, while a 500 GB drive might fill within a year.
Photo and video collections grow quickly. 50,000 smartphone photos at 4 MB each are 200 GB, which is 0.2 TB. Adding 4K video can push that past 1 TB.
Data center and cloud pricing often switches from GB to TB at larger scales. Storage at $0.02 per GB per month is $20 per TB per month.
Internet providers in some countries set monthly caps in TB, such as 1.2 TB. Heavy streaming in 4K at about 7 GB per hour uses that cap after roughly 170 hours.
When shopping, drives come in 1, 2, 4 and 8 TB sizes, so converting your GB total helps pick the right capacity.
Security camera systems record continuously and fill drives fast. A single 1080p camera recording at 4 Mbps uses about 43 GB per day, or 1.3 TB per month. A four-camera system therefore needs over 5 TB for a month of footage.
Laptop buyers often compare a 512 GB model with a 1 TB model. The difference is 488 GB, nearly half a terabyte, which is enough for roughly 120,000 smartphone photos or about 100 HD movies. Upgrading storage later is impossible on many thin laptops because the SSD is soldered to the board, so it is worth converting your current usage into terabytes before buying.
Scientific research generates huge datasets. A single genome sequenced at high coverage can produce around 100 GB of raw data, which is 0.1 TB, so a lab sequencing 50 genomes needs about 5 TB. Telescopes and particle physics experiments go further: CERN's Large Hadron Collider experiments store tens of thousands of terabytes every year.
Photographers shooting RAW files of 50 MB each fill 1 GB with only 20 images. A wedding shoot of 3,000 images takes 150 GB, so ten weddings need about 1.5 TB, before backups are counted.
To check, move the decimal point three places to the left: 1,500 GB is 1.5 TB and 250 GB is 0.25 TB. If your result is slightly lower, such as 1.36 for 1,500 GB, you divided by 1,024 twice and produced TiB instead of TB.
TB = GB × 0.001
Reverse: 1 TB = 1 000 GB.
Convert 750 GB to TB.
Answer: 750 GB = 0.75 TB.
| GB | TB |
|---|---|
| 1 GB | 0.001 TB |
| 2 GB | 0.002 TB |
| 3 GB | 0.003 TB |
| 4 GB | 0.004 TB |
| 5 GB | 0.005 TB |
| 6 GB | 0.006 TB |
| 7 GB | 0.007 TB |
| 8 GB | 0.008 TB |
| 9 GB | 0.009 TB |
| 10 GB | 0.01 TB |
| 11 GB | 0.011 TB |
| 12 GB | 0.012 TB |
| 13 GB | 0.013 TB |
| 14 GB | 0.014 TB |
| 15 GB | 0.015 TB |
| GB | TB |
|---|---|
| 16 GB | 0.016 TB |
| 17 GB | 0.017 TB |
| 18 GB | 0.018 TB |
| 19 GB | 0.019 TB |
| 20 GB | 0.02 TB |
| 25 GB | 0.025 TB |
| 30 GB | 0.03 TB |
| 40 GB | 0.04 TB |
| 50 GB | 0.05 TB |
| 75 GB | 0.075 TB |
| 100 GB | 0.1 TB |
| 250 GB | 0.25 TB |
| 500 GB | 0.5 TB |
| 1 000 GB | 1 TB |
750 GB of data is 0.75 TB, so a 1 TB drive fits.
A 512 GB phone is 0.512 TB.
3,200 GB of footage is 3.2 TB.
Buy roughly double your current data for backups.
That gives TiB, not TB.
Gb is gigabits. 1,000 Gb is 125 GB.
A gigabyte (GB) is 1,000,000,000 bytes, using the decimal SI prefix giga.
Origin. Decimal prefixes for storage became standard in the hard drive industry in the 1980s and were confirmed by the IEC in 1998.
Used today. File totals and device storage.
A terabyte (TB) is 1,000,000,000,000 bytes, or 1,000 GB.
Origin. Consumer hard drives first reached 1 TB in 2007.
Used today. Drive capacity.
1 TB.
Yes, 0.5 TB.
4 TB.
Yes, 1,000 times bigger.