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Conversion Formula:
Convert Chain to Inch (ch to in) instantly with accurate, readable results.
Use our Length Unit Converter to quickly convert between meters, kilometers, feet, inches, miles, and more. This powerful unit conversion tool supports both metric and imperial systems, making it ideal for travel, engineering, education, and everyday use. Whether you're calculating distances or comparing measurements, our length unit conversion calculator ensures fast and accurate results every time.
Chain - traditional surveying length unit
Chain is a historical unit used in land surveying, specifically Gunter’s chain. Used on cadastral maps and by railways and surveyors across the English-speaking world.
- Symbols: ch (common)
- System: Imperial/US customary (historic surveying)
- Exact relations: 1 chain = 66 ft = 22 yd = 4 rods = 100 links = 1/80 mile; 10 chains = 1 furlong
- Metric equivalents: 1 chain = 20.1168 m (exact)
- Typical examples: UK railway distances recorded in miles and chains; a cricket pitch length is 1 chain (22 yd)
Inch (in) — Imperial/US unit defined exactly as 25.4 millimeters
Standard in manufacturing and consumer specs in the US, including displays and lumber. Defined metrically for exact conversions.
- Symbol: in
- System: Imperial/US customary
- Exact relations: 1 in = 25.4 mm = 2.54 cm = 0.0254 m (exact)
- Other relations: 12 in = 1 ft, 36 in = 1 yd
- Typical examples: screen sizes, pipe/nominal lumber sizes, drill bits