Terabits per Second to Gigabits per Second (Tbps to Gbps)
1 terabit per second (Tbps) = 1000 gigabits per second (Gbps). 1 Gbps = 0.001 Tbps. Example: 15 Tbps = 15 × 1000 = 15000 Gbps.
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1 Tbps = 1000 Gbps
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk terabit per second to gigabit per second converter to paste a column from Excel.
How to Convert Terabit per Second to Gigabit per Second
- 1 Tbps = 1000 Gbps
- 1 Gbps = 0.001 Tbps
- Example: convert 15 Tbps to Gbps: 15 Tbps = 15 × 1000 Gbps = 15000 Gbps
Formula
Gbps = Tbps × 1000
Derivation from SI units:
- 1 Tbit/s = 10¹² bit/s.
- 1 Gbit/s = 10⁹ bit/s.
- 1 Tbps = 1000000000000 bps ÷ 1000000000 bps per Gbps = 1000 Gbps
Both units are defined exactly, so the factor is exact. Terabit per Second definition: terabit per second; Gigabit per Second definition: gigabit per second.
Worked examples
- A reading of 1 Tbps converts to 1000 Gbps.
1 Tbps × 1000 = 1000 Gbps - A value of 50 Tbps is 50000 Gbps.
50 Tbps × 1000 = 50000 Gbps
Terabit per Second to Gigabit per Second conversion table
| Terabits per Second (Tbps) | Gigabits per Second (Gbps) |
|---|---|
| 0.1 Tbps | 100 Gbps |
| 0.4 Tbps | 400 Gbps |
| 1 Tbps | 1000 Gbps |
| 2 Tbps | 2000 Gbps |
| 10 Tbps | 10000 Gbps |
| 50 Tbps | 50000 Gbps |
| 100 Tbps | 100000 Gbps |
| 200 Tbps | 200000 Gbps |
Where it's used
Terabits per Second are used for undersea fibre cables, while gigabits per second appear in ethernet and fibre links. Both measure data transfer rate (bandwidth), so the conversion is a fixed factor.
Terabit per Second to other data transfer rate units
| Conversion | 1 Tbps equals |
|---|---|
| terabit per second to gigabit per second | 1000 Gbps |
| terabit per second to megabit per second | 1000000 Mbps |
| terabit per second to megabyte per second | 125000 MB/s |
| terabit per second to kilobit per second | 1000000000 kbps |
| terabit per second to gigabyte per second | 125 GB/s |
| terabit per second to bit per second | 1000000000000 bps |
| terabit per second to byte per second | 125000000000 B/s |
| terabit per second to kilobyte per second | 125000000 kB/s |
Show 2 more units
| terabit per second to mebibyte per second | 119209.2896 MiB/s |
|---|---|
| terabit per second to kibibyte per second | 122070312.5 KiB/s |
Frequently asked questions
How many gigabits per second are in 1 terabit per second?
1 Tbps = 1000 Gbps.
How do I convert terabits per second to gigabits per second?
Multiply the value in Tbps by 1000. For example, 15 Tbps × 1000 = 15000 Gbps.
Is the Tbps to Gbps conversion exact?
Yes. Both units are defined exactly, and 1 Tbps is exactly 1000 Gbps.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Terabits per Second to Gigabits per Second (Tbps to Gbps). Retrieved October 25, 2026, from https://scientificconverters.com/data-rate/terabits-per-second-to-gigabits-per-second/
IEEE
Scientific Converters, "Terabits per Second to Gigabits per Second (Tbps to Gbps)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-rate/terabits-per-second-to-gigabits-per-second/