Foot to Inch Converter

The foot is a unit of length in the imperial and US customary systems of measurement. It is defined as exactly 0.3048 meters.

Facts About Feet

• 1 foot = 12 inches
• 3 feet = 1 yard
• 5280 feet = 1 mile
• 1 foot ≈ 0.3048 meters
• 1 foot ≈ 30.48 centimeters

Common Uses

• Measuring human height
• Aviation altitude (flight levels in feet)
• Construction and carpentry
• Real estate property dimensions

History

The foot has been used since ancient times, with different cultures having varying definitions. The current international foot was standardized in 1959.

The inch is a unit of length in the imperial and US customary systems. It is defined as exactly 2.54 centimeters.

Facts About Inches

• 1 inch = 2.54 centimeters
• 1 inch = 25.4 millimeters
• 12 inches = 1 foot
• 36 inches = 1 yard

Common Uses

• Screen sizes (TVs, monitors, phones)
• Tire and wheel sizes
• Construction lumber (2x4, etc.)
• Paper sizes (US Letter = 8.5 x 11 inches)
• Rainfall measurements in the US

History

The inch has been used since ancient times. The word "inch" derives from the Latin word "uncia," meaning "one-twelfth," which was also the name of a Roman unit. The inch was originally defined as the width of a man's thumb at the base of the nail.

In 1959, the international yard and pound agreement defined the inch as exactly 25.4 millimeters (2.54 centimeters), establishing a standard conversion between imperial and metric systems. This definition is now used universally in the United States, United Kingdom, Canada, Australia, New Zealand, and South Africa.