Feet and Inches Calculator
Add, subtract, multiply or divide lengths in feet, inches and fractions, like 5' 7 1/2" + 3' 9 3/4".
Result
9' 5 1/4"
- Decimal feet
- 9.4375 ft
- Total inches
- 113.25 in
- Centimeters
- 287.655 cm
- Meters
- 2.87655 m
Show the work
First length in inches
total inches = feet × 12 + inches
5 × 12 + 7.5 = 67.5 in
Second length in inches
total inches = feet × 12 + inches
3 × 12 + 9.75 = 45.75 in
Add them
total = first + second
67.5 + 45.75 = 113.25 in
Split into whole feet and inches
total inches = feet × 12 + inches
113.25 in = 9 × 12 + 5.25
In feet and inches
9' 5 1/4"
How it works
Lengths are turned into inches (feet × 12 + inches + fraction), combined, then shown as feet, inches and sixteenths
Questions
- How does the feet and inches calculator work?
- Lengths are turned into inches (feet × 12 + inches + fraction), combined, then shown as feet, inches and sixteenths.
- What do I need to enter?
- First length, Operation, Second length, Number. Optional fields can be left blank.
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