Convert Bits to Terabytes - Data Storage Converter
This converter translates a value in bits into terabytes (TB) using the SI decimal definition where 1 TB = 10^12 bytes. It is designed for large-scale capacity planning, data-transfer estimation, and reporting.
Interactive Converter
Convert between bit and terabyte with precision rounding.
Quick reference table
| Bit | Terabyte |
|---|---|
| 1 b | 0 TB |
| 5 b | 0 TB |
| 10 b | 0 TB |
| 25 b | 0 TB |
| 50 b | 0 TB |
| 100 b | 0 TB |
Methodology
Base identity: 1 byte = 8 bits. Decimal prefixes: 1 TB = 1,000,000,000,000 bytes.
Conversion path: bits → bytes (÷8) → terabytes (÷10^12). Combined: TB = bits ÷ (8 × 10^12).
Binary option: for tebibytes (TiB), use 1 TiB = 1,099,511,627,776 bytes (2^40). The bit-to-byte step remains ÷8; only the divisor changes.
Worked examples
8,000,000,000,000 bits → 1 TB.
40,000,000,000,000 bits → 5 TB.
8,796,093,022,208 bits → 1 TiB (binary reference), which equals about 1.0995 TB under decimal prefixes.
Key takeaways
TB = bits ÷ (8 × 10^12) for decimal terabytes; use the TiB divisor if you need binary units.
Expert Q&A
Which convention does this converter follow by default?
The default is decimal SI: 1 TB = 10^12 bytes. Use the TiB divisor for binary contexts.
Why does an OS show a different value for the same drive size?
Many operating systems use binary units (TiB) while vendors use decimal (TB). The byte count is the same; the displayed number changes because of the divisor (10^12 vs 2^40).
How should I round for reports?
For summaries, 2–3 significant digits are common. For technical or contractual documents, keep more precision and state the unit and convention used.
Sources & citations
- NIST — SI prefixes and unit definitions — https://physics.nist.gov/cuu/Units/prefixes.html
- NIST — Binary prefixes (IEC) reference — https://physics.nist.gov/cuu/Units/binary.html
- ISO/IEC quantities and units overview — https://www.iso.org/standard/43348.html