Feet to Inches Converter (ft to in)
Instantly convert between feet and inches using this precise tool. Essential for construction, interior design, and academic applications. 100% free with no registration required.
Conversion Formula
1 foot (ft) = 12 inches (in)
To convert feet to inches:
inches = feet × 12
Example: 2.5 ft × 12 = 30 in
Feet to Inches Conversion Table
| Feet (ft) | Inches (in) |
|---|---|
| 0.1 ft | 1.2 in |
| 0.5 ft | 6 in |
| 1 ft | 12 in |
| 2 ft | 24 in |
| 2.5 ft | 30 in |
| 5 ft | 60 in |
| 10 ft | 120 in |
| 15 ft | 180 in |
| 20 ft | 240 in |
| 50 ft | 600 in |
| 100 ft | 1,200 in |
Practical Examples
- Door height: 6.67 ft = 80 in (standard door height)
- Ceiling height: 8 ft = 96 in (typical residential ceiling)
- Furniture length: 3 ft = 36 in (average coffee table length)
Professional Applications
- Construction: Measuring room dimensions and building materials
- Interior design: Furniture and space planning
- Architecture: Blueprint and structural design measurements
- Real estate: Property and floor plan measurements
Definition and Background
What is a Foot?
A foot (ft) is an imperial unit of length equal to 12 inches. The name originates from:
- Historical use based on the average length of a human foot
- Standardized in 1959 as exactly 0.3048 meters
What is an Inch?
The inch (in) is an imperial unit of length, defined as:
- 1/12 of a foot
- Exactly 2.54 centimeters in the metric system
Imperial System Hierarchy
| Unit | Symbol | Inches |
|---|---|---|
| Inch | in | 1 in |
| Foot | ft | 12 in |
| Yard | yd | 36 in |
| Mile | mi | 63,360 in |
Frequently Asked Questions
Why would I use feet instead of inches?
Feet provide a convenient unit for measuring distances that are too long for inches but too short for yards or miles, especially in construction and design.
How precise is foot measurement?
While less precise than inches (1 ft = 12 in), feet are useful for approximate measurements where exact precision isn’t critical.
What’s the history of the foot?
The foot has origins in ancient measurements based on the human foot, standardized in 1959 to align with the metric system (1 ft = 0.3048 m).
Are feet and inches used worldwide?
Primarily used in the US, UK, and other countries with imperial systems; less common in countries using the metric system.