12 in to cm
Step-by-Step: 12 in to cm
- Start with 12 in
- Apply the conversion formula
- Result: 30.48 cm
12 inches equals 30.48 cm — exactly 1 foot. The foot is one of the oldest units of measure, originally based on the length of a human foot. Today, 12 inches is the length of a standard ruler, a common subway sandwich, and roughly the diameter of a vinyl LP record. In construction, 12 inches is a fundamental unit: floor tiles come in 12×12 inch squares, ceiling heights are measured in feet, and stud spacing is 12 or 16 inches on center. The foot-inch relationship (12 inches = 1 foot) parallels the 12-hour clock, 12 months in a year, and a dozen eggs — the number 12 is deeply embedded in Western measurement systems.
Did You Know?
The foot was standardized to exactly 0.3048 meters in 1959 by international agreement between the US, UK, Canada, Australia, New Zealand, and South Africa.
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FAQ
12 inches = 30.48 cm exactly (1 foot).
The number 12 was favored because it's divisible by 2, 3, 4, and 6, making fractions easier for trades and commerce.
A standard ruler, a 12-inch sub sandwich, a vinyl LP record, and a 12-inch floor tile.