Convert Terabytes to Gigabytes
Instantly convert Terabytes (TB) to Gigabytes (GB) with our free online calculator.
Formula: TB to GB — multiply by 1024
Reference Table
| Terabytes (TB) | Gigabytes (GB) |
|---|---|
| 1 | 1024 |
| 5 | 5120 |
| 10 | 10240 |
| 25 | 25600 |
| 50 | 51200 |
| 100 | 102400 |
How to Convert Terabytes to Gigabytes
Formula
To convert Terabytes (TB) to Gigabytes (GB): multiply by 1024
Step-by-Step
- Start with your value in Terabytes (TB).
- Multiply by 1024 to perform the conversion.
- The result is your value expressed in Gigabytes (GB).
Conversion Factor
1 TB = 1024 GB
Reverse Factor
1 GB = 0.000976563 TB
Worked Example
Convert 25 Terabytes to Gigabytes: 25 TB = 25600 GB
About Terabyte (TB)
A unit of digital storage equal to 1,099,511,627,776 bytes (= 1,024⁴ = 2⁴⁰ bytes) in the binary (computing) convention, or 1,000,000,000,000 bytes (= 10¹²) in the decimal (SI marketing) convention — the difference is 10%, so '1 TB' marketed hard drives show as '931 GB' in OS. Reference values: typical hard disk drive (HDD) consumer capacity 1-22 TB (Seagate IronWolf Pro 22 TB, WD Red Pro 22 TB enterprise drives); typical desktop SSD 500 GB - 8 TB; modern professional video production (4K + 8K) requires 10-100 TB workflow storage; the entire genome of a single human ~3.2 GB compressed, but a full whole-genome FASTQ + BAM dataset ~200-300 GB; the Hubble Space Telescope's lifetime archive ~150 TB; CERN's Large Hadron Collider produces ~50 PB/year of raw data (~50,000 TB). Consumer NAS (network attached storage) Synology DiskStation + QNAP TS-series typically configured 8-32 TB usable. Modern PCIe Gen 5 NVMe SSDs (Samsung 990 Pro, WD Black SN850X) reach 12,400 MB/s sequential read.
About Gigabyte (GB)
A unit of digital storage equal to 1,073,741,824 bytes (= 1,024³ = 2³⁰ bytes) in the binary (computing) convention, or 1,000,000,000 bytes (= 10⁹) in the decimal (SI marketing) convention — the difference of 7.4% explains why a hard drive marketed as '1 TB' shows as '931 GB' in operating-system reporting. Reference values: a typical modern smartphone storage 64-512 GB (iPhone 15 base 128 GB, Pro Max up to 1 TB; Galaxy S24 base 256 GB); typical laptop SSD 256 GB - 2 TB; consumer USB flash drive 16-512 GB; the entire English Wikipedia text + images compressed ~50 GB; a 4K 60-fps movie file in H.265 ~30-50 GB for a 2-hour film; a Blu-ray disc 25 GB (single layer) or 50 GB (dual layer); the Internet Archive's Wayback Machine total ~99 PB (~99,000,000 GB). The gigabyte is the dominant working unit for consumer storage in 2020s+ technology — laptops, phones, USB drives, gaming consoles (PS5 + Xbox Series X both ship with 825 GB - 1 TB internal NVMe).
Quick Facts
- 1 Terabyte equals 1024 Gigabytes
- 1 Gigabyte equals 0.000976563 Terabytes
- Terabyte is a unit of data storage
- Gigabyte is a unit of data storage
- This conversion is commonly used in IT infrastructure, cloud computing, and file management
Common Terabyte to Gigabyte Conversions
| Terabytes (TB) | Gigabytes (GB) |
|---|---|
| 0.01 | 10.24 |
| 0.1 | 102.4 |
| 0.25 | 256 |
| 0.5 | 512 |
| 1 | 1024 |
| 2 | 2048 |
| 3 | 3072 |
| 5 | 5120 |
| 10 | 10240 |
| 15 | 15360 |
| 20 | 20480 |
| 25 | 25600 |
| 50 | 51200 |
| 75 | 76800 |
| 100 | 102400 |
| 250 | 256000 |
| 500 | 512000 |
| 1000 | 1024000 |
| 5000 | 5120000 |
| 10000 | 10240000 |
Understanding Terabytes
The Terabyte (symbol: TB) is a unit of data storage. A unit of digital storage equal to 1,099,511,627,776 bytes (= 1,024⁴ = 2⁴⁰ bytes) in the binary (computing) convention, or 1,000,000,000,000 bytes (= 10¹²) in the decimal (SI marketing) convention — the difference is 10%, so '1 TB' marketed hard drives show as '931 GB' in OS. Reference values: typical hard disk drive (HDD) consumer capacity 1-22 TB (Seagate IronWolf Pro 22 TB, WD Red Pro 22 TB enterprise drives); typical desktop SSD 500 GB - 8 TB; modern professional video production (4K + 8K) requires 10-100 TB workflow storage; the entire genome of a single human ~3.2 GB compressed, but a full whole-genome FASTQ + BAM dataset ~200-300 GB; the Hubble Space Telescope's lifetime archive ~150 TB; CERN's Large Hadron Collider produces ~50 PB/year of raw data (~50,000 TB). Consumer NAS (network attached storage) Synology DiskStation + QNAP TS-series typically configured 8-32 TB usable. Modern PCIe Gen 5 NVMe SSDs (Samsung 990 Pro, WD Black SN850X) reach 12,400 MB/s sequential read.
Terabytes are commonly used in IT infrastructure, cloud computing, and file management.
Understanding Gigabytes
The Gigabyte (symbol: GB) is a unit of data storage. A unit of digital storage equal to 1,073,741,824 bytes (= 1,024³ = 2³⁰ bytes) in the binary (computing) convention, or 1,000,000,000 bytes (= 10⁹) in the decimal (SI marketing) convention — the difference of 7.4% explains why a hard drive marketed as '1 TB' shows as '931 GB' in operating-system reporting. Reference values: a typical modern smartphone storage 64-512 GB (iPhone 15 base 128 GB, Pro Max up to 1 TB; Galaxy S24 base 256 GB); typical laptop SSD 256 GB - 2 TB; consumer USB flash drive 16-512 GB; the entire English Wikipedia text + images compressed ~50 GB; a 4K 60-fps movie file in H.265 ~30-50 GB for a 2-hour film; a Blu-ray disc 25 GB (single layer) or 50 GB (dual layer); the Internet Archive's Wayback Machine total ~99 PB (~99,000,000 GB). The gigabyte is the dominant working unit for consumer storage in 2020s+ technology — laptops, phones, USB drives, gaming consoles (PS5 + Xbox Series X both ship with 825 GB - 1 TB internal NVMe).
Gigabytes are commonly used in IT infrastructure, cloud computing, and file management.
Why Convert Terabytes to Gigabytes?
Converting between Terabytes and Gigabytes is a frequent requirement for engineers, scientists, and students working with data storage values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate data storage conversion is essential.
Frequently Asked Questions
How do I convert Terabytes to Gigabytes?
A unit of digital storage equal to 1,099,511,627,776 bytes (= 1,024⁴ = 2⁴⁰ bytes) in the binary (computing) convention, or 1,000,000,000,000 bytes (= 10¹²) in the decimal (SI marketing) convention — the difference is 10%... To convert Terabytes to Gigabytes, multiply by 1024. For example, 25 TB equals 25600 GB.
How many Gigabytes are in 1 Terabyte?
There are 1024 Gigabytes in 1 Terabyte.
How many Terabytes are in 1 Gigabyte?
There are 0.000976563 Terabytes in 1 Gigabyte.
What is the formula for Terabyte to Gigabyte conversion?
The formula is: multiply by 1024. This means 1 TB = 1024 GB.
Is a Terabyte bigger than a Gigabyte?
No. One Terabyte is smaller than one Gigabyte because 1 TB equals 1024 GB, which is greater than 1.
When do you need to convert between Terabytes and Gigabytes?
A unit of digital storage equal to 1,073,741,824 bytes (= 1,024³ = 2³⁰ bytes) in the binary (computing) convention, or 1,000,000,000 bytes (= 10⁹) in the decimal (SI marketing) convention — the difference of 7. Terabyte and Gigabyte are both data storage units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.