Terabits per Second to Gigabytes per Second (Tbps to GB/s)
1 terabit per second (Tbps) = 125 gigabytes per second (GB/s). 1 GB/s = 0.008 Tbps. Example: 15 Tbps = 15 × 125 = 1875 GB/s.
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1 Tbps = 125 GB/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk terabit per second to gigabyte per second converter to paste a column from Excel.
How to Convert Terabit per Second to Gigabyte per Second
- 1 Tbps = 125 GB/s
- 1 GB/s = 0.008 Tbps
- Example: convert 15 Tbps to GB/s: 15 Tbps = 15 × 125 GB/s = 1875 GB/s
Formula
GB/s = Tbps × 125
Derivation from SI units:
- 1 Tbit/s = 10¹² bit/s.
- 1 GB/s = 10⁹ B/s = 8 Gbit/s.
- 1 Tbps = 1000000000000 bps ÷ 8000000000 bps per GB/s = 125 GB/s
Both units are defined exactly, so the factor is exact. Terabit per Second definition: terabit per second; Gigabyte per Second definition: gigabyte per second.
Worked examples
- A reading of 1 Tbps converts to 125 GB/s.
1 Tbps × 125 = 125 GB/s - A value of 50 Tbps is 6250 GB/s.
50 Tbps × 125 = 6250 GB/s
Terabit per Second to Gigabyte per Second conversion table
| Terabits per Second (Tbps) | Gigabytes per Second (GB/s) |
|---|---|
| 0.1 Tbps | 12.5 GB/s |
| 0.4 Tbps | 50 GB/s |
| 1 Tbps | 125 GB/s |
| 2 Tbps | 250 GB/s |
| 10 Tbps | 1250 GB/s |
| 50 Tbps | 6250 GB/s |
| 100 Tbps | 12500 GB/s |
| 200 Tbps | 25000 GB/s |
Where it's used
Terabits per Second are used for undersea fibre cables, while gigabytes per second appear in NVMe SSD speeds. 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 gigabyte per second | 125 GB/s |
| 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 gigabit per second | 1000 Gbps |
| 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 gigabytes per second are in 1 terabit per second?
1 Tbps = 125 GB/s.
How do I convert terabits per second to gigabytes per second?
Multiply the value in Tbps by 125. For example, 15 Tbps × 125 = 1875 GB/s.
Is the Tbps to GB/s conversion exact?
Yes. Both units are defined exactly, and 1 Tbps is exactly 125 GB/s.
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 Gigabytes per Second (Tbps to GB/s). Retrieved October 25, 2026, from https://scientificconverters.com/data-rate/terabits-per-second-to-gigabytes-per-second/
IEEE
Scientific Converters, "Terabits per Second to Gigabytes per Second (Tbps to GB/s)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-rate/terabits-per-second-to-gigabytes-per-second/