Feet and Inches to Feet Converter
Convert imperial feet and inches (ft & in) into decimal feet (ft) accurately. Ideal for calculating area, scientific data processing, and architectural scaling.
Simplifying Imperial Notation
Imperial measurements often use a combination of feet and inches (e.g., 5'10"), which can be difficult to use in mathematical formulas. Converting these to a single decimal foot value streamlines calculations for area, volume, and professional drafting.
Combined Units
The standard way to express human height and room sizes in the US and UK.
Decimal Feet
The unit used by engineers and computer programs to perform accurate geometric calculations.
The Mathematical Logic
CONVERSION FORMULA
decimal feet = feet + (inches ÷ 12)
The conversion follows a simple step: keep the feet as the whole number, and divide the remaining inches by 12 to find the decimal fraction.
Example Conversions
Below are common human heights and dimension conversions used frequently in medical and engineering records.
Notation Inches Decimal Feet 5' 0" 60 in 5 ft 5' 6" 66 in 5.5 ft 5' 10" 70 in 5.833 ft 6' 0" 72 in 6 ft 6' 2" 74 in 6.166 ft Reference Conversion Table
Inches Added Decimal Part 1 in 0.0833 ft 2 in 0.1667 ft 3 in 0.25 ft 4 in 0.3333 ft 5 in 0.4167 ft Frequently Asked Questions