Terabit digital storage unit.
Terabits to Bytes Converter — Tb to B
Convert Terabit (Tb) to Byte (B) using the exact conversion factor (1 terabit = 125,000,000,000 byte). See the formula, worked examples, conversion table, history, and common uses.
Terabits to Bytes converter
Converter
Digital Storage Converter
Convert bits, bytes, decimal storage, binary storage, nibbles, and word sizes.
Context values
Some unit families need one extra value for a physically accurate result.
Byte digital storage unit.
Result = input x 1e+12 / 8.
Digital storage uses bits as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Terabits to Bytes
Terabit and Byte are everyday digital-storage units, used for everything from file sizes and app downloads to storage device capacity and mobile data allowances. Specifically: Terabit digital storage unit, and byte digital storage unit.
Formula
bytes = terabits × 125000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 terabit equals 1e+12 base units, and 1 byte equals 8 base units, so dividing one by the other gives the direct terabit-to-byte factor of 125000000000.
Simple example
1 Tb × 125000000000 = 125,000,000,000 B
1 terabit = 125,000,000,000 bytes.
Real-world example
500 Tb × 125000000000 = 6.25e+13 B
500 terabits = 6.25e+13 bytes.
Conversion table
| Terabit (Tb) | Byte (B) |
|---|---|
| 1 Tb | 125,000,000,000 B |
| 8 Tb | 1e+12 B |
| 16 Tb | 2e+12 B |
| 64 Tb | 8e+12 B |
| 256 Tb | 3.2e+13 B |
| 1,000 Tb | 1.25e+14 B |
Reverse conversion: Byte to Terabit
1 B × 8e-12 = 8e-12 Tb
1 byte = 8e-12 terabits.
terabits = bytes × 8e-12
For a page dedicated to this direction, see Byte to Terabit.
Understanding the Terabit (Tb)
Terabit digital storage unit.
Understanding the Byte
Byte (B) measures digital storage. A byte is 8 bits, the standard unit for addressing a single character of text in most computer architectures. It is classified as a Base digital storage unit.
Where it's used: Universal in computing
Uses of the Byte today
- Fundamental unit for file sizes and memory addressing
- Base unit from which all larger storage units (KB, MB, GB) are derived
History of the Byte
The byte emerged in the 1950s-60s as computer architectures converged on 8 bits as a practical size for representing a single character; IBM's System/360 (1964) was influential in cementing the 8-bit byte as an industry standard.
Historical origin. Byte was not the invention of a single named person; it developed through the process described above.
Byte — sources
- IEC 80000-13 — Defines the byte and its relationship to the bit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many bytes are in 1 terabit?
1 terabit equals 125,000,000,000 bytes, using the exact defined conversion factor rather than an estimate.
How do I convert terabit to byte?
Multiply the terabit value by 125000000000. The converter above does this instantly to whatever precision you set.
How do I convert byte back to terabit?
Use the reverse factor: 1 byte equals 8e-12 terabits. You can also use the swap control in the converter above to flip the direction instantly.
What is a terabit?
Terabit (Tb) is a unit of digital storage.
What is a byte?
Byte (B) measures digital storage. A byte is 8 bits, the standard unit for addressing a single character of text in most computer architectures. It is classified as a Base digital storage unit.
Is the terabit to byte conversion exact?
Yes. Both terabit and byte are defined by fixed standards rather than physical artifacts, so the factor of 125000000000 used above is exact to as many digits as you choose to display.