Convert Feet to Inches
Use our free online converter to easily convert from Feet to Inches. Get accurate conversions instantly.
Converting Feet to Inches
Converting feet to inches is one of the most common length conversions within the imperial system, used extensively in construction, interior design, and human height measurements in the United States.
Mathematical Relationship
The mathematical relation between feet and inches is: 1 foot = 12 inches. To convert a length in feet to inches, multiply the feet value by 12.
Common Conversion Values
| Feet | Inches |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 5 | 60 |
| 6 | 72 |
Unit Definitions
Feet
The foot (plural: feet, symbol: ft) is a unit of length in the imperial and US customary systems of measurement. It is equal to 12 inches or 1/3 of a yard.
Inches
The inch (symbol: in) is a unit of length in the imperial and US customary systems of measurement. It is equal to 1/12 of a foot or 1/36 of a yard.
Historical Context
Both the foot and inch have ancient origins, with variations used across many civilizations. The relationship of 12 inches to a foot comes from the duodecimal (base-12) number system used by many ancient cultures, which is convenient because 12 has many divisors (1, 2, 3, 4, 6, 12).