Feet and inches calculator
Type measurements the way you read them off the tape. Add, subtract, multiply and divide, with the answer to the nearest 1/16".
Use ' for feet and " for inches. 3-7/8 and 3 7/8 both mean three and seven eighths.
Result
0"
Recent calculations
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| Measurement | Result |
|---|
How to type a measurement
Units can be symbols or words; fractions can use a dash or a space.
| You type | Jobmath reads |
|---|---|
| 5' 3-7/8" | 5 feet, 3 and 7/8 inches |
| 5ft 3 7/8in | The same, with words for units |
| 63.875 | 63.875 inches (or feet, if you set numbers to feet) |
| 12' 6" / 2 | Half of 12 feet 6 inches: 6' 3" |
| 8' x 3 | Three 8-foot lengths: 24' |
| 10' - 2x 3/4" | Not supported: multiply or divide a length by a plain number only |
| 1200 mm + 2' | Metric and imperial can be mixed |
Inch fractions to decimals and millimeters
Every sixteenth of an inch, from 1/16" to 1".
| Fraction | Decimal inch | Millimeters |
|---|