Terabit per second to Megabit per second
Tbps
Mbps
Conversion History
| Conversion | Reuse | Delete |
|---|---|---|
| No conversion history to show. | ||
Quick Reference Table (Terabit per second to Megabit per second)
| Terabit per second (Tbps) | Megabit per second (Mbps) |
|---|---|
| 0.1 | 100,000 |
| 1 | 1,000,000 |
| 10 | 10,000,000 |
| 100 | 100,000,000 |
| 400 | 400,000,000 |
| 1,000 | 1,000,000,000 |
About Terabit per second (Tbps)
A terabit per second (Tbps) equals 1,000 Gbps and is the unit of internet backbone and submarine cable capacity. Transoceanic fiber cables carry hundreds of terabits per second in aggregate across multiple wavelengths using dense wavelength-division multiplexing (DWDM). The global internet collectively carries several hundred Tbps at peak. Individual backbone router links at major exchange points operate at 100–400 Gbps, with Tbps links emerging in the largest facilities.
A single modern transoceanic submarine cable can carry 200–400 Tbps of aggregate capacity. Major internet exchange points like DE-CIX in Frankfurt peak at over 10 Tbps.
About Megabit per second (Mbps)
A megabit per second (Mbps) equals 1,000,000 bits per second and is the dominant unit for describing home and business broadband speeds worldwide. ISPs universally advertise in Mbps — "100 Mbps fiber" or "1 Gbps" plans. Because bytes are 8 bits, a 100 Mbps connection delivers a maximum of 12.5 MB/s in a download manager. Streaming services specify minimum Mbps requirements: HD video typically needs 5–10 Mbps; 4K streaming 25 Mbps or more.
A typical home broadband connection in a developed country runs at 50–300 Mbps. Netflix recommends 25 Mbps for 4K Ultra HD streaming.
Terabit per second – Frequently Asked Questions
How much data does the entire internet carry per second?
Global internet traffic peaks at roughly 1,000–1,500 Tbps (1–1.5 Pbps) as of 2026. This is growing at about 25% per year, driven by video streaming, cloud computing, and AI training data transfers. A single viral live event can spike regional traffic by tens of Tbps.
What happens if a submarine cable carrying Tbps of data gets cut?
Internet traffic automatically reroutes through other cables and paths via BGP routing protocols, usually within seconds. Speed may degrade in the affected region but rarely drops entirely. Cable cuts happen more often than people think — about 100 per year globally, mostly from ship anchors and fishing trawlers.
How do submarine cables achieve hundreds of Tbps?
Dense wavelength-division multiplexing (DWDM) sends dozens of different light colors (wavelengths) through a single fiber simultaneously, each carrying its own data stream. A modern cable contains multiple fiber pairs, each carrying 100+ wavelengths, with each wavelength modulated at 400 Gbps or more.
Could a single Tbps connection download all of Netflix?
Netflix's library is estimated at around 30–40 petabytes. At 1 Tbps, downloading the entire catalog would take roughly 70–90 hours. At 100 Tbps (a realistic submarine cable capacity), you could theoretically grab all of Netflix in under an hour.
What is the fastest data transfer ever achieved in a lab?
Researchers at Japan's NICT achieved 22.9 Pbps (22,900 Tbps) through a single multicore fiber in 2024. That is enough to transfer the entire Library of Congress in a fraction of a second. These lab records typically reach commercial deployment 5–10 years later.
Megabit per second – Frequently Asked Questions
Why does my 100 Mbps internet only download at 12 MB/s?
Because ISPs advertise in megabits (Mb) while download managers show megabytes (MB). There are 8 bits in a byte, so 100 Mbps ÷ 8 = 12.5 MB/s. Your connection is working perfectly — it is just a unit mismatch that has confused people for decades.
How many Mbps do I need for streaming 4K video?
Netflix recommends 25 Mbps for 4K, YouTube suggests 20 Mbps, and Apple TV+ needs about 25 Mbps. In practice, 50 Mbps gives comfortable headroom for one 4K stream plus normal browsing. A household streaming on multiple devices simultaneously should aim for 100+ Mbps.
Why is my Wi-Fi speed lower than my wired Ethernet speed?
Wi-Fi shares bandwidth among all connected devices, loses throughput to interference from walls and other electronics, and uses half-duplex communication (it cannot send and receive simultaneously). A 300 Mbps Wi-Fi router might deliver 100–150 Mbps to a single device in practice, while Ethernet gives you the full rated speed.
What is the difference between download and upload Mbps?
Download Mbps measures data coming to you (streaming, browsing), while upload Mbps measures data you send (video calls, cloud backups). Most home connections are asymmetric — 100 Mbps down but only 10–20 Mbps up. Fiber-to-the-home plans increasingly offer symmetric speeds.
How many Mbps does online gaming actually need?
Surprisingly little — most online games use only 1–3 Mbps of bandwidth. What gamers actually need is low latency (ping), not high throughput. A 10 Mbps connection with 15ms ping will outperform a 500 Mbps connection with 100ms ping for gaming every time.