Feet to Inches calculator
Convert Feet to Inches instantly with our free online calculator. Perfect for quick and accurate conversions.
Conversion Formula
in = ft × 12
What is Feet?
Last updated: Apr 14, 2025Feet (ft) - Imperial Unit of Length

The foot is a fundamental unit of length in the imperial and US customary systems. This guide explores its historical significance, modern applications, and practical uses in everyday measurements.
Originally based on the length of a human foot, the modern foot was standardized at exactly 12 inches or 1/3 of a yard. It remains one of the most commonly used units for height and short distances in the United States and several other countries.
Common measurements in feet include:
- Average human height: 5-6 ft
- Standard door height: 6.67 ft
- Basketball hoop height: 10 ft
- Standard shipping container: 40 ft
Feet are extensively used in construction, architecture, and property measurements. Understanding foot measurements is crucial for building projects, room dimensions, and ceiling heights in countries using the imperial system.
Common Feet to Inches Conversions
Feet to Inches Conversion Guide
Converting feet to inches is fundamental for construction, woodworking, and home improvement projects. Our calculator uses the formula in = ft × 12 for accurate conversions.
Common feet to inches conversions:
- 1 ft = 12 in
- 2 ft = 24 in
- 3 ft = 36 in
- 6 ft = 72 in
This conversion is particularly useful for:
- Construction measurements
- Woodworking projects
- Home improvement
- Furniture dimensions