Length and Area
mitoch
Convert miles (mi) to chains (ch).
Factor1 mi = 80 ch
Converter
mi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ch
Rendered to 6 significant figures.
Formula
Formula
ch = mi × 80
Multiply any value in miles by 80 to obtain the value in chains.
Worked example
Convert 1 mi to ch.
- 01Start with 1 mi.
- 02Multiply by the conversion factor: 1 × 80 = 80 ch.
Result1 mi = 80 ch
Conversion table
| mi | ch |
|---|---|
| 1 | 80 |
| 2 | 160 |
| 5 | 400 |
| 10 | 800 |
| 20 | 1600 |
| 50 | 4000 |
| 100 | 8000 |
| 200 | 16000 |
| 500 | 40000 |
| 1000 | 80000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mi to ch?
1 mi equals 80 ch. To convert, multiply the value in miles by 80.
How do I convert 1 mi to ch?
1 mi = 80 ch. For any value, multiply by 80.
How do I convert ch back to mi?
Divide by the same factor — or equivalently, multiply by 0.0125. So 1 ch = 0.0125 mi.
When would I need to convert mile 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).