Length and Area
intoch
Convert inches (in) to chains (ch).
Factor1 in = 0.001262626 ch
Converter
in
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ch
Rendered to 6 significant figures.
Formula
Formula
ch = in × 0.001262626
Multiply any value in inches by 0.001262626 to obtain the value in chains.
Worked example
Convert 1000 in to ch.
- 01Start with 1000 in.
- 02Multiply by the conversion factor: 1000 × 0.001262626 = 1.26263 ch.
Result1000 in = 1.26263 ch
Conversion table
| in | ch |
|---|---|
| 1 | 0.0012626 |
| 2 | 0.0025253 |
| 5 | 0.0063131 |
| 10 | 0.012626 |
| 20 | 0.025253 |
| 50 | 0.063131 |
| 100 | 0.12626 |
| 200 | 0.25253 |
| 500 | 0.63131 |
| 1000 | 1.2626 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from in to ch?
1 in equals 0.001262626 ch. To convert, multiply the value in inches by 0.001262626.
How do I convert 1 in to ch?
1 in = 0.00126263 ch. For any value, multiply by 0.001262626.
How do I convert ch back to in?
Divide by the same factor — or equivalently, multiply by 792. So 1 ch = 792 in.
When would I need to convert inch to chain (Gunter's chain)?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).