How to Convert Terabytes to Kilobytes (TB to KB)
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 terabytes into kilobytes by hand, with examples and a quick-reference table.
The conversion
To convert terabytes to kilobytes, multiply the value by 1.000000e+09. To go the other way, divide by the same number (or multiply by 1.000000e-09). For a quick estimate, multiply by about 1,000,000,000.
Kilobytes = terabytes × 1.000000e+09
Worked examples
- 3 TB = 3,000,000,000 KB
- 12.5 TB = 12,500,000,000 KB
- 75 TB = 75,000,000,000 KB
Terabytes to Kilobytes table
| Terabytes | Kilobytes |
|---|---|
| 1 TB | 1,000,000,000 KB |
| 2 TB | 2,000,000,000 KB |
| 5 TB | 5,000,000,000 KB |
| 10 TB | 10,000,000,000 KB |
| 20 TB | 20,000,000,000 KB |
| 25 TB | 25,000,000,000 KB |
| 50 TB | 50,000,000,000 KB |
| 100 TB | 100,000,000,000 KB |
| 250 TB | 250,000,000,000 KB |
| 500 TB | 500,000,000,000 KB |
| 1,000 TB | 1.000000e+12 KB |
Common questions
Is TB to KB 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 Kilobytes to Terabytes 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.
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.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Background
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
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 Terabytes to Kilobytes Converter or browse all data storage converters.
Run your own numbers: Terabytes to Kilobytes Converter