How to Convert Chi (Chinese foot) to Micrometres (chi to µm)
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles. This guide shows how to convert chi (chinese foot) into micrometres by hand, with examples and a quick-reference table.
The conversion
To convert chi (chinese foot) to micrometres, multiply the value by 333,333.3333333333. To go the other way, divide by the same number (or multiply by 3.000000e-06). For a quick estimate, multiply by about 330,000.
Micrometres = chi (chinese foot) × 333,333.3333333333
Worked examples
- 3 chi = 1,000,000 µm
- 12.5 chi = 4,166,666.67 µm
- 75 chi = 25,000,000 µm
Chi (Chinese foot) to Micrometres table
| Chi (Chinese foot) | Micrometres |
|---|---|
| 1 chi | 333,333.33 µm |
| 2 chi | 666,666.67 µm |
| 5 chi | 1,666,666.67 µm |
| 10 chi | 3,333,333.33 µm |
| 20 chi | 6,666,666.67 µm |
| 25 chi | 8,333,333.33 µm |
| 50 chi | 16,666,666.67 µm |
| 100 chi | 33,333,333.33 µm |
| 250 chi | 83,333,333.33 µm |
| 500 chi | 166,666,666.67 µm |
| 1,000 chi | 333,333,333.33 µm |
Common questions
Is chi to µm 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 Micrometres to Chi (Chinese foot) converter.
Mistakes to avoid
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
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
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.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
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.
For any value, use the Chi (Chinese foot) to Micrometres Converter or browse all length converters.
Run your own numbers: Chi (Chinese foot) to Micrometres Converter