How to Convert Bytes to Terabytes (B 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 bytes into terabytes by hand, with examples and a quick-reference table.
The conversion
To convert bytes to terabytes, multiply the value by 1.000000e-12. To go the other way, divide by the same number (or multiply by 1.000000e+12). Because the factor is tiny, scientific notation keeps the numbers manageable.
Terabytes = bytes × 1.000000e-12
Worked examples
- 3 B = 3.000000e-12 TB
- 12.5 B = 1.250000e-11 TB
- 75 B = 7.500000e-11 TB
Bytes to Terabytes table
| Bytes | Terabytes |
|---|---|
| 1 B | 1.000000e-12 TB |
| 2 B | 2.000000e-12 TB |
| 5 B | 5.000000e-12 TB |
| 10 B | 1.000000e-11 TB |
| 20 B | 2.000000e-11 TB |
| 25 B | 2.500000e-11 TB |
| 50 B | 5.000000e-11 TB |
| 100 B | 1.000000e-10 TB |
| 250 B | 2.500000e-10 TB |
| 500 B | 5.000000e-10 TB |
| 1,000 B | 1.000000e-9 TB |
Common questions
Is B 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 Bytes converter.
Mistakes to avoid
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
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.
Background
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.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
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 Bytes to Terabytes Converter or browse all data storage converters.
Run your own numbers: Bytes to Terabytes Converter