Terabit per Second to Gigabit per Second Converter
One Terabit per Second equals 1000 Gigabit per Second (1 Tbps = 1000 Gbps). Multiply a Terabit per Second value by 1000 to get the equivalent in Gigabit per Second. Enter your value in the calculator above. The formula and examples below show how to calculate it by hand.
Formula
Gbps = Tbps × 1000
Multiply the Terabit per Second value by 1000 to get the equivalent value in Gigabit per Second.
Example Conversions
1 Terabit per Second (Tbps)
1000 Gigabit per Second (Gbps)
5 Terabit per Second (Tbps)
5000 Gigabit per Second (Gbps)
10 Terabit per Second (Tbps)
10000 Gigabit per Second (Gbps)
25 Terabit per Second (Tbps)
25000 Gigabit per Second (Gbps)
100 Terabit per Second (Tbps)
100000 Gigabit per Second (Gbps)
Conversion Table
| Terabit per Second (Tbps) | Gigabit per Second (Gbps) |
|---|---|
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 250 | 250000 |
| 500 | 500000 |
| 1000 | 1000000 |
How to Convert Manually
Use these steps to convert Terabit per Second values to Gigabit per Second without the calculator.
- Write down the value in Terabit per Second (Tbps) that you want to convert.
- Multiply that value by 1000.
- For example, 10 Terabit per Second × 1000 = 10000 Gigabit per Second.
- Label the result as Gigabit per Second (Gbps).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Terabit per Second and one Gigabit per Second.
About Terabit per Second and Gigabit per Second
The terabit per second (Tbps) equals 10¹² bits per second. It is used for backbone fibre-optic cable capacity and inter-data-centre links. Single optical fibres can now carry over 10 Tbps using wavelength-division multiplexing. The gigabit per second (Gbps) equals 1,000,000,000 bits per second (10⁹ bps). It is the standard for fibre-optic internet, data-centre interconnects, and NVMe storage throughput. One Terabit per Second equals 1000 Gigabit per Second (1 Tbps = 1000 Gbps). Terabit per Second is used in submarine and intercontinental fibre-optic cables and in hyperscale data-centre backbone links. Gigabit per Second is used in Gigabit and multi-gigabit fibre broadband (1–10 Gbps).
Precision and Rounding:Data transfer rates are almost always quoted in SI decimal prefixes (1 Kbps = 1,000 bps), not binary (1 Kibps = 1,024 bps). Internet service providers universally use SI prefixes. When converting to bytes per second, remember 1 byte = 8 bits exactly. Never round this factor.
See our guide to megabits vs. megabytes if you're unsure which one your download speed is quoted in.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15Terabit per Second equals15000Gigabit per Second.
15 Tbps × 1000 = 15000 Gbps
FAQ
How do I convert Terabit per Second to Gigabit per Second?
Multiply the Terabit per Second value by 1000 to get the equivalent value in Gigabit per Second.
What is the formula for Terabit per Second to Gigabit per Second?
The formula is Gbps = Tbps × 1000.
How many Gigabit per Second are in 1 Terabit per Second?
1 Terabit per Second equals 1000 Gigabit per Second.
Can I convert Gigabit per Second back to Terabit per Second?
Yes. 1 Gigabit per Second equals 0.001 Terabit per Second, and the related converter can reverse the calculation.
What are common names for Terabit per Second and Gigabit per Second?
Terabit per Second is shown as Tbps and may also be searched as tbps, tbit/s, terabits per second. Gigabit per Second is shown as Gbps and may also be searched as gbps, gbit/s, gigabits per second.
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