How to Convert Bits to Kilobytes (bit 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 bits into kilobytes by hand, with examples and a quick-reference table.
The conversion
To convert bits to kilobytes, multiply the value by 0.000125. To go the other way, divide by the same number (or multiply by 8,000). Because the factor is tiny, scientific notation keeps the numbers manageable.
Kilobytes = bits × 0.000125
Worked examples
- 3 bit = 0.000375 KB
- 12.5 bit = 0.001563 KB
- 75 bit = 0.009375 KB
Bits to Kilobytes table
| Bits | Kilobytes |
|---|---|
| 1 bit | 0.000125 KB |
| 2 bit | 0.00025 KB |
| 5 bit | 0.000625 KB |
| 10 bit | 0.00125 KB |
| 20 bit | 0.0025 KB |
| 25 bit | 0.003125 KB |
| 50 bit | 0.00625 KB |
| 100 bit | 0.0125 KB |
| 250 bit | 0.03125 KB |
| 500 bit | 0.0625 KB |
| 1,000 bit | 0.125 KB |
Common questions
Is bit 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 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.
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.
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.
Background
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.
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.
For any value, use the Bits to Kilobytes Converter or browse all data storage converters.
Run your own numbers: Bits to Kilobytes Converter