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Convert Chain to Nanometer (ch to nm) 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)
Nanometer (nm) — SI unit equal to one billionth of a meter
Used for wavelengths of light, molecular structures, and semiconductor features where dimensions are far below the micrometer scale
- Symbol: nm
- System: SI derived unit
- Exact relations: 1 nm = 10⁻⁹ m = 0.001 µm = 10 Å
- Imperial/US equivalents: 1 nm ≈ 0.0000000393700787 in
- Typical examples: visible light ~400–700 nm; DNA double helix diameter ~2 nm; advanced transistor features on the order of single-digit nanometers