How to Convert Bits to Terabytes (bit to TB)
Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes. This guide shows how to convert bits into terabytes by hand, with examples and a quick-reference table.
The conversion
To convert bits to terabytes, multiply the value by 1.250000e-13. To go the other way, divide by the same number (or multiply by 8.000000e+12). Because the factor is tiny, scientific notation keeps the numbers manageable.
Terabytes = bits × 1.250000e-13
Worked examples
- 3 bit = 3.750000e-13 TB
- 12.5 bit = 1.562500e-12 TB
- 75 bit = 9.375000e-12 TB
Bits to Terabytes table
| Bits | Terabytes |
|---|---|
| 1 bit | 1.250000e-13 TB |
| 2 bit | 2.500000e-13 TB |
| 5 bit | 6.250000e-13 TB |
| 10 bit | 1.250000e-12 TB |
| 20 bit | 2.500000e-12 TB |
| 25 bit | 3.125000e-12 TB |
| 50 bit | 6.250000e-12 TB |
| 100 bit | 1.250000e-11 TB |
| 250 bit | 3.125000e-11 TB |
| 500 bit | 6.250000e-11 TB |
| 1,000 bit | 1.250000e-10 TB |
Common questions
Is bit to TB exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Terabytes to Bits converter.
Mistakes to avoid
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Background
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
For any value, use the Bits to Terabytes Converter or browse all data storage converters.
Run your own numbers: Bits to Terabytes Converter