Length and Area
chtoft
Convert chains (ch) to feet (ft).
Factor1 ch = 66 ft
Converter
ch
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ft
Rendered to 6 significant figures.
Formula
Formula
ft = ch × 66
Multiply any value in chains by 66 to obtain the value in feet.
Worked example
Convert 1 ch to ft.
- 01Start with 1 ch.
- 02Multiply by the conversion factor: 1 × 66 = 66 ft.
Result1 ch = 66 ft
Conversion table
| ch | ft |
|---|---|
| 1 | 66 |
| 2 | 132 |
| 5 | 330 |
| 10 | 660 |
| 20 | 1320 |
| 50 | 3300 |
| 100 | 6600 |
| 200 | 13200 |
| 500 | 33000 |
| 1000 | 66000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ch to ft?
1 ch equals 66 ft. To convert, multiply the value in chains by 66.
How do I convert 1 ch to ft?
1 ch = 66 ft. For any value, multiply by 66.
How do I convert ft back to ch?
Divide by the same factor — or equivalently, multiply by 0.01515152. So 1 ft = 0.0151515 ch.
When would I need to convert chain (Gunter's chain) to foot?
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).