Tbps to MiB/s

1 terabit per second equals 119,209.2896 mebibytes per second (rounded).

1 terabit per second = 119,209.2896 mebibytes per second

How to convert terabits per second to mebibytes per second

To convert terabits per second to mebibytes per second, multiply the number of terabits per second by 119,209.2896. The factor is rounded to 10 significant digits. To go the other way, multiply mebibytes per second by 0.000008388608.

mebibytes per second = terabits per second × 119,209.2896

Example: 10 terabits per second = 1,192,092.896 mebibytes per second.

Network speeds are quoted in bits per second (lowercase b), while file sizes use bytes (uppercase B). Divide Mbps by 8 for MB/s.

About these units

Terabit Per Second (Tbps)

ComputingCurrent unit

10¹² bits per second. The scale of backbone and undersea cables.

Terabit speeds appear where many signals are combined. A single optical fiber can carry dozens of wavelengths at once through dense wavelength-division multiplexing, and modern undersea cables bundle many fiber pairs, so a typical cable can carry tens of terabits per second overseas. A satellite, by comparison, typically offers about 1 Gbit/s, a ratio of more than 1,000 to 1.

One terabit per second is 10¹² bit/s, or 125 GB/s. At that rate a 25 GB Blu-ray disc worth of data would cross the link in a fifth of a second. Ethernet is moving into this range as well. IEEE approved 800 Gigabit Ethernet in February 2024 under 802.3df, and a separate project, 802.3dj, was started in November 2022 to cover 1.6 Tbit/s. Ordinary users rarely meet the unit directly, since it describes capacity shared among many people.

1 terabit per second = 1,000,000,000,000 bits per second (exactly).

Sources: Wikipedia: Submarine communications cable; Wikipedia: Terabit Ethernet; NIST: Metric (SI) prefixes

Mebibyte Per Second (MiB/s)

ComputingCurrent unit

1,048,576 bytes per second (8.39 Mbps). Used by some operating systems and storage tools.

Mebibyte is one of the newest words in computing. In December 1998 the IEC approved names for binary multiples, published in 1999 as an amendment to IEC 60027-2. Each keeps the first two letters of its SI counterpart and adds bi for binary, so mebi stands for 2²⁰. The aim was to stop mega meaning 10⁶ in telecommunications and storage but 2²⁰ in memory, a split that left room for incompatibility.

A mebibyte per second is 1,048,576 bytes per second, about 8.39 Mbit/s, so it is roughly 4.9 percent larger than 1 MB/s. Some operating systems and tools divide by 1,024 and then print the result with a plain MB label, so one program may show 11.9 for a transfer that another shows as 12.5. For example, a 100 Mbit/s link carries about 11.92 MiB/s at most. The IEEE chose to keep SI meanings in its own standards, allowing base-two use of mega only when explicitly noted.

1 mebibyte per second = 8,388,608 bits per second (exactly).

Sources: NIST: Prefixes for binary multiples; Wikipedia: Data-rate units; Wikipedia: Megabyte

Related conversions

See all data transfer rate units.