Gigabit to Terabit Conversion Calculator: Free Online Tool

Convert gigabits to terabits with our free online data storage converter.

From:

Gigabit

To:

Terabit

How to Use the Calculator:

Enter the value you want to convert in the 'From' field (Gigabit).
The converted value in Terabit will appear automatically in the 'To' field.
Use the dropdown menus to select different units within the Data Storage category.
Click the swap button (⇌) to reverse the conversion direction.

How to Convert Gigabit to Terabit

Converting Gigabit to Terabit involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Gigabit = 0.001 terabits

Example Calculation:

Convert 10 gigabits: 10 × 0.001 = 0.01 terabits

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Gigabit and a Terabit?

A gigabit (Gb) is a unit of digital information equal to 109 bits, or 1,000,000,000 bits. It uses the standard SI decimal prefix 'giga-'. It is commonly used to measure data transfer rates.

A terabit (Tb or Tbit) is a multiple of the bit unit for digital information or computer storage. The prefix tera- (symbol T) is defined in the International System of Units (SI) as a multiplier of 1012 (1 trillion, or 1 followed by 12 zeros). Therefore, 1 terabit = 1,000,000,000,000 bits. This is equivalent to 1,000 gigabits (Gb).

Note: The Gigabit is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Terabit belongs to the imperial/US customary system.

History of the Gigabit and Terabit

The prefix 'giga-' originates from the Greek word "gigas," meaning "giant," and was adopted as an SI prefix in 1960 to denote a factor of 109 (one billion). In computing and telecommunications, the gigabit became prominent with the rise of high-speed networking technologies like Gigabit Ethernet in the late 1990s and early 2000s. While 'giga-' strictly means 109, its usage sometimes caused confusion with binary multiples (230), leading to the creation of the IEC binary prefix 'gibi-' (Gib).

The SI prefix 'tera-' (meaning 1012) was adopted for use in computing as data scales grew into the trillions of bits. Initially, 'tera-' was sometimes used ambiguously to refer to either 1012 or the nearest power of 2 (240). This ambiguity led the International Electrotechnical Commission (IEC) to introduce the binary prefix 'tebi-' (Ti) specifically for 240, clarifying that terabit (Tb) strictly refers to 1012 bits.

Common Uses for gigabits and terabits

Explore the typical applications for both Gigabit (imperial/US) and Terabit (imperial/US) to understand their common contexts.

Common Uses for gigabits

Measuring data transfer rates, especially network speeds (e.g., Gigabit Ethernet at 1 Gbps, internet connection speeds).
Specifying the bandwidth of communication channels.
Sometimes used in the context of memory chip density or storage capacity, although Gigabyte (GB) is far more common for storage.
Calculating download/upload times based on file size (in GB or GiB) and network speed (in Gbps).

Common Uses for terabits

Terabits are commonly used in contexts involving high-capacity data transmission and large-scale data measurement:

Measuring the data transfer rates of high-speed networks, internet backbones, and data center interconnects (often expressed in Tbps - terabits per second).
Quantifying the throughput of network equipment like routers and switches.
Describing the capacity of optical fiber communication systems.
Sometimes used alongside terabytes (TB) in marketing large storage devices, although TB (bytes) is more common for capacity.
Discussing large datasets in scientific computing and big data analytics, particularly concerning transmission speeds.

Frequently Asked Questions

Questions About Gigabit (Gb)

How many bits are in a gigabit?

There are exactly 1,000,000,000 (one billion or 109) bits in 1 gigabit (Gb).

What is the difference between a gigabit (Gb) and a gigabyte (GB)?

A gigabit (Gb) measures data in bits, while a gigabyte (GB) measures data in bytes. Assuming the standard 1 byte = 8 bits, 1 gigabyte (GB) is equal to 8 gigabits (Gb). Network speeds are usually in Gbps (gigabits per second), while file sizes are usually in GB (gigabytes).

What is the difference between a gigabit (Gb) and a gibibit (Gib)?

A gigabit (Gb) uses the decimal prefix 'giga-' and equals 109 (1,000,000,000) bits. A gibibit (Gib) uses the binary prefix 'gibi-' and equals 230 (1,073,741,824) bits. A gibibit is approximately 7.37% larger than a gigabit.

Is Gbps the same as GBps?

No. Gbps stands for gigabits per second, while GBps stands for gigabytes per second. Since 1 byte = 8 bits, a transfer rate of 1 GBps is eight times faster than a transfer rate of 1 Gbps. Network speeds are almost always advertised in Gbps.

About Terabit (Tb)

How many bits are in a terabit?

There are exactly 1,000,000,000,000 bits (one trillion bits, or 1012 bits) in 1 terabit (Tb), according to the standard SI definition of the prefix 'tera-'.

What is the difference between a terabit (Tb) and a terabyte (TB)?

A terabit (Tb) measures data in bits and equals 1012 bits. It is commonly used for data transfer rates.
A terabyte (TB) measures data in bytes. According to SI standards, it equals 1012 bytes. It is typically used for measuring storage capacity. (Note: The term tebibyte (TiB) correctly refers to 240 bytes).

Since 1 byte = 8 bits, 1 terabyte (1012 bytes) is equal to 8 x 1012 bits, or 8 terabits. Therefore, a terabyte represents 8 times more data than a terabit.

What is the difference between a terabit (Tb) and a tebibit (Tib)?

A terabit (Tb) uses the decimal SI prefix 'tera-' and equals 1012 bits (1,000,000,000,000 bits).
A tebibit (Tib) uses the binary IEC prefix 'tebi-' and equals 240 bits (1,099,511,627,776 bits).

A tebibit is approximately 9.95% larger than a terabit (1 Tib ≈ 1.0995 Tb). Use Tb for contexts adhering to decimal standards (like network speeds) and Tib when precise binary multiples (powers of 2) are required (often related to memory or specific storage architectures).

How many gigabits (Gb) are in a terabit (Tb)?

There are 1,000 gigabits (Gb) in 1 terabit (Tb). This is derived from the SI prefixes: 1 Tb = 1012 bits and 1 Gb = 109 bits. Therefore, 1 Tb / 1 Gb = 1012 / 109 = 103 = 1,000.

Conversion Table: Gigabit to Terabit

Gigabit (Gb)	Terabit (Tb)
1	0.001
5	0.005
10	0.01
25	0.025
50	0.05
100	0.1
500	0.5
1,000	1

All Data Storage Conversions

Bit to Byte Bit to Kilobit Bit to Kilobyte Bit to Megabit Bit to Megabyte Bit to Gigabit Bit to Gigabyte Bit to Terabit Bit to Terabyte Bit to Petabit Bit to Petabyte Bit to Exabit Bit to Exabyte Bit to Kibibit Bit to Kibibyte Bit to Mebibit Bit to Mebibyte Bit to Gibibit Bit to Gibibyte Bit to Tebibit Bit to Tebibyte Bit to Pebibit Bit to Pebibyte Bit to Exbibit Bit to Exbibyte Byte to Bit Byte to Kilobit Byte to Kilobyte Byte to Megabit Byte to Megabyte Byte to Gigabit Byte to Gigabyte Byte to Terabit Byte to Terabyte Byte to Petabit Byte to Petabyte Byte to Exabit Byte to Exabyte Byte to Kibibit Byte to Kibibyte Byte to Mebibit Byte to Mebibyte Byte to Gibibit Byte to Gibibyte Byte to Tebibit Byte to Tebibyte Byte to Pebibit Byte to Pebibyte Byte to Exbibit Byte to Exbibyte Kilobit to Bit Kilobit to Byte Kilobit to Kilobyte Kilobit to Megabit Kilobit to Megabyte Kilobit to Gigabit Kilobit to Gigabyte Kilobit to Terabit Kilobit to Terabyte Kilobit to Petabit Kilobit to Petabyte Kilobit to Exabit Kilobit to Exabyte Kilobit to Kibibit Kilobit to Kibibyte Kilobit to Mebibit Kilobit to Mebibyte Kilobit to Gibibit Kilobit to Gibibyte Kilobit to Tebibit Kilobit to Tebibyte Kilobit to Pebibit Kilobit to Pebibyte Kilobit to Exbibit Kilobit to Exbibyte Kilobyte to Bit Kilobyte to Byte Kilobyte to Kilobit Kilobyte to Megabit Kilobyte to Megabyte Kilobyte to Gigabit Kilobyte to Gigabyte Kilobyte to Terabit Kilobyte to Terabyte Kilobyte to Petabit Kilobyte to Petabyte Kilobyte to Exabit Kilobyte to Exabyte Kilobyte to Kibibit Kilobyte to Kibibyte Kilobyte to Mebibit Kilobyte to Mebibyte Kilobyte to Gibibit Kilobyte to Gibibyte Kilobyte to Tebibit Kilobyte to Tebibyte Kilobyte to Pebibit Kilobyte to Pebibyte Kilobyte to Exbibit Kilobyte to Exbibyte Megabit to Bit Megabit to Byte Megabit to Kilobit Megabit to Kilobyte Megabit to Megabyte Megabit to Gigabit Megabit to Gigabyte Megabit to Terabit Megabit to Terabyte Megabit to Petabit Megabit to Petabyte Megabit to Exabit Megabit to Exabyte Megabit to Kibibit Megabit to Kibibyte Megabit to Mebibit Megabit to Mebibyte Megabit to Gibibit Megabit to Gibibyte Megabit to Tebibit