How Many Gigabytes in a Terabyte?
Quick Answer
There are 1,000 gigabytes in a terabyte (TB) using the SI standard, or 1,024 gibibytes in a tebibyte (TiB) using the binary standard.
1 TB = 1,000 GB (SI) or 1 TiB = 1,024 GiB (binary)
Understanding the Conversion
In the SI (decimal) standard, one terabyte (TB) equals exactly 1,000 gigabytes. In the binary standard, one tebibyte (TiB) equals 1,024 gibibytes (GiB). External hard drives and SSDs are marketed using SI units, so a 1 TB drive shows about 931 GiB in your operating system.
Formula
1 TB = 1,000 GB (SI) or 1 TiB = 1,024 GiB (binary)
Common Examples
| Description | Value |
|---|---|
| A modern laptop SSD | Typically 256 GB - 2 TB |
| An external hard drive | Typically 1-5 TB |
| About 250 full-length HD movies | ~1 TB |
Quick Reference Table
Use this table for quick conversions between terabyte and gigabytes:
| terabyte | gigabytes |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
Frequently Asked Questions
How Many Gigabytes in a Terabyte?
There are 1,000 gigabytes in a terabyte (TB) using the SI standard, or 1,024 gibibytes in a tebibyte (TiB) using the binary standard. In the SI (decimal) standard, one terabyte (TB) equals exactly 1,000 gigabytes. In the binary standard, one tebibyte (TiB) equals 1,024 gibibytes (GiB). External hard drives and SSDs are marketed using SI units, so a 1 TB drive shows about 931 GiB in your operating system.
What is the formula to convert terabyte to gigabytes?
The formula is: 1 TB = 1,000 GB (SI) or 1 TiB = 1,024 GiB (binary). To convert, multiply the number of terabytes by 1,000 to get the equivalent in gigabytes.
How do I convert gigabytes to terabyte?
To convert gigabytes to terabyte, divide the number of gigabytes by 1,000. For example, 5,000 gigabytes equals 5 terabytes.
Related "How Many" Questions
How Many Megabytes in a Gigabyte?
There are 1,000 megabytes in a gigabyte (GB) using the SI standard, or 1,024 mebibytes in a gibibyte (GiB) using the binary standard.
How Many Kilobytes in a Megabyte?
There are 1,000 kilobytes in a megabyte (MB) using the SI standard, or 1,024 kibibytes in a mebibyte (MiB) using the binary standard.
How Many Bytes in a Kilobyte?
There are 1,000 bytes in a kilobyte (KB) using the SI standard, or 1,024 bytes in a kibibyte (KiB) using the binary standard.
How Many Bits in a Byte?
There are 8 bits in a byte.