How to convert decimal feet
Keep the whole feet.Multiply the decimal part by 12 to get inches.Keep the whole inches.Multiply the leftover by 16 and round — that’s your sixteenths.Reduce the fraction (8/16 = 1/2, 4/16 = 1/4, 2/16 = 1/8).
Trade pro tips
- 0.1 ft ≈ 1-3/16" — a handy anchor for reading survey stakes.
- For finish work round to 1/32"; for framing 1/16" is plenty.
Frequently asked questions
How do you convert decimal feet to feet and inches?
Multiply the decimal part by 12 for inches, then multiply any leftover inch decimal by 16 for sixteenths. 4.35 ft → 0.35 × 12 = 4.2" → 0.2 × 16 = 3.2 → 4' 4-3/16".
What is 0.1 feet in inches?
0.1 ft = 1.2", which reads 1-3/16" on a tape.
Why do surveyors use decimal feet?
Decimal feet make area and slope math easier with calculators; engineering scales and levels are graduated in tenths and hundredths of a foot.
What is 0.01 foot in inches?
0.01 ft = 0.12", just under 1/8".