Convert Chain (ch) (ch) to Foot (ft) (ft)
Category: Length
10 ch = 660 ft
High-precision rounding: 6 decimals
How to convert chain (ch) to foot (ft)
We convert by pivoting through the SI base unit for Length and applying exact factors where applicable.
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Quick conversion table
Handy values for Chain (ch) → Foot (ft). Click a value to open that exact result.
Conversion formula
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Confusing international foot (0.3048 m) with legacy ‘US survey foot’ in old datasets.
- Rounding mid-calculation; keep precision to the end.
Unit facts
- Foot (ft): The foot is exactly 0.3048 meters (1959). Common in construction, aviation (runway lengths), and everyday use in US/UK.
About Length
Length measures distance or size. In SI it derives from the meter, defined via the speed of light, which ensures exact, reproducible conversions. Typical applications include construction, mapping, manufacturing tolerances, and navigation; legacy units like inches and feet remain common in trade and building plans.
About Chain (ch)
Chain (ch) is a commonly used unit within the Length category.
About Foot (ft)
Foot (ft)
Equals 12 inches; exactly 0.3048 m. Common for human height, room dimensions, and altitude in aviation (with feet for flight levels).
History: Standardized as the ‘international foot’ in 1959; the legacy US survey foot persisted for geodesy until its retirement in 2023 in favor of the international definition.