20 inches converts to 1 ft 8 in — 1.6667 feet in decimal form. The division leaves a remainder, which is why the answer reads more naturally as 1 ft 8 in than as a decimal. In metric it is 50.8 cm.
- Feet and inches1 ft 8 in
- Nearest 1/16 in20 in
- Centimetres50.8 cm
How 20 inches becomes 1 foot 8 inches
feet = inches ÷ 12 → 20 ÷ 12 = 1.6667
- Start with 20 inches.
- Divide by 12: 20 ÷ 12 = 1.6667.
- Keep the whole number — 1 feet — and multiply what is left by 12: 0.6667 × 12 = 8 inches.
- Written out: 20 inches = 1.6667 feet = 1 ft 8 in.
20 Inches in Feet in other units
| 1.6667 ft | Feet |
| 1 ft 8 in | Feet and inches |
| 50.8 cm | Centimetres — exact |
| 0.508 m | Metres — exact |
| 508 mm | Millimetres — exact |
| 0.5556 yd | Yards |
| 20 in | Nearest sixteenth |
Where this measurement turns up
Buying furniture online
Listings quote dimensions in inches while rooms are measured in feet. Converting 20 inches to 1 ft 8 in first tells you whether the piece actually fits.
Fabric and curtains
Furnishing fabric is milled in inch widths. At 20 inches you are working with 1 ft 8 in of usable width before hems and pleat fullness.
In the classroom
20 inches is a useful worked example precisely because it does not divide exactly. Dividing by 12 and reading the remainder back as inches is the whole method.
Carpentry and cutting lists
Cutting lists mix both units freely. 20 in is 1 ft 8 in, and on a tape measure that reads as 20 in.
Values close to this one
| Inches | Feet | Feet & inches |
|---|---|---|
| 14 | 1.1667 | 1 ft 2 in |
| 15 | 1.25 | 1 ft 3 in |
| 16 | 1.3333 | 1 ft 4 in |
| 17 | 1.4167 | 1 ft 5 in |
| 18 | 1.5 | 1 ft 6 in |
| 19 | 1.5833 | 1 ft 7 in |
| 20 | 1.6667 | 1 ft 8 in |
| 21 | 1.75 | 1 ft 9 in |
| 22 | 1.8333 | 1 ft 10 in |
| 23 | 1.9167 | 1 ft 11 in |
| 24 | 2 | 2 ft 0 in |
| 25 | 2.0833 | 2 ft 1 in |
| 26 | 2.1667 | 2 ft 2 in |
Things to watch
Decimal feet is not feet-and-inches
1.5 feet means 1 ft 6 in, not 1 feet 1 inches. Half a foot is six inches, not five. This single confusion causes most cutting and ordering errors.
Divide rather than multiplying by 0.0833
The decimal factor is rounded, so it drifts: 20 × 0.0833 gives 1.666, where 20 ÷ 12 lands on 1.6667. Dividing is both simpler and exact.
Twelve to the foot, not ten
Decimal habits do not carry over. There is no such measurement as 1 feet 14 inches — that is 2 ft 2 in.
Frequently asked questions
Is 20 inches exactly 1.67 feet?
Not quite. 20 inches is 1.6667 feet, which reads more usefully as 1 ft 8 in. Only multiples of 12 convert to whole feet.
How tall is 20 inches in feet and inches?
1 ft 8 in, which is 50.8 cm.
What is 20 inches in centimetres and metres?
50.8 cm, or 0.508 m. Both figures are exact values rather than approximations.
Is there always 12 inches in a foot?
Yes. Since 1959 the international inch has been defined as exactly 2.54 cm and the foot as exactly 0.3048 m, so 12 inches to the foot holds in India, the UK, the US and everywhere else, in every trade.
Nearby values
Related conversions
In short
20 inches is 1.6667 feet, which reads as 1 ft 8 in. Divide by 12 for the decimal, then multiply the remainder by 12 to get the inches back. Reporting the answer as feet and inches is almost always clearer than the decimal on site.