Feet to Inches Converter (ft to in)
1 ft = 12 in exactly. Convert feet, including decimal feet from tape measures and plans, to inches, with each answer also in feet and inches.
Inch (in) = Foot (ft) × 12
Foot (ft): The international foot is exactly 0.3048 metres, or 12 inches. This converter uses that definition, not the former US survey foot of 1200/3937 metre used in some historical survey records.
Inch (in): The inch is exactly 2.54 centimetres, a value fixed by the 1959 international yard and pound agreement. It is used in the US and UK for screen sizes, tools, pipes and body measurements.
| Foot (ft) | Inch (in) |
|---|---|
| 1 | 12 |
| 5 | 60 |
| 10 | 120 |
| 25 | 300 |
| 50 | 600 |
| 100 | 1200 |
Multiplying feet by 12 is easy for whole numbers; the conversion gets awkward with decimal feet. Site plans, survey notes and laser measures often show 7.25 ft rather than 7 ft 3 in, and anyone cutting material needs the inches. This page multiplies by 12 exactly and shows each result split into feet and inches too.
The first chart steps through tenths of a foot, the divisions on an engineer's tape and many surveying instruments: 0.1 ft is 1.2 in, a little over an inch and an eighth. The everyday table covers court markings and building materials that are specified in feet.
How to use this tool
- Type a value in the Foot box to see it in inches, or type in the Inch box to convert the other way.
- Press ⇄ to swap the two units, or Load example for a typical value.
- Check the charts below for common values; for other units, open the Length converter.
Formula
Inch (in) = Foot (ft) × 12
Foot (ft) = Inch (in) × 0.0833333333333
Both factors come from exact definitions: 1 inch = 0.0833333333333 feet and 1 foot = 12 inches (shown to 12 significant digits).
Example
Two conversions worked with the same factors the converter uses:
5.75 ft × 12 = 69 in
30 in × 0.0833333333333 = 2.5 ft
Foot to Inch chart
Common values from feet to inches, rounded to four decimal places.
| Foot (ft) | Inch (in) | Feet and inches |
|---|---|---|
| 0.1 | 1.2 | 0 ft 1.2 in |
| 0.2 | 2.4 | 0 ft 2.4 in |
| 0.25 | 3 | 0 ft 3.0 in |
| 0.3 | 3.6 | 0 ft 3.6 in |
| 0.4 | 4.8 | 0 ft 4.8 in |
| 0.5 | 6 | 0 ft 6.0 in |
| 0.6 | 7.2 | 0 ft 7.2 in |
| 0.7 | 8.4 | 0 ft 8.4 in |
| 0.75 | 9 | 0 ft 9.0 in |
| 0.8 | 9.6 | 0 ft 9.6 in |
| 0.9 | 10.8 | 0 ft 10.8 in |
| 1 | 12 | 1 ft 0.0 in |
| 1.25 | 15 | 1 ft 3.0 in |
| 2 | 24 | 2 ft 0.0 in |
| 2.5 | 30 | 2 ft 6.0 in |
| 3 | 36 | 3 ft 0.0 in |
| 4 | 48 | 4 ft 0.0 in |
| 5 | 60 | 5 ft 0.0 in |
| 5.5 | 66 | 5 ft 6.0 in |
| 6 | 72 | 6 ft 0.0 in |
| 6.5 | 78 | 6 ft 6.0 in |
| 8 | 96 | 8 ft 0.0 in |
| 10 | 120 | 10 ft 0.0 in |
| 12 | 144 | 12 ft 0.0 in |
| 16 | 192 | 16 ft 0.0 in |
| 20 | 240 | 20 ft 0.0 in |
Inch to Foot chart
The reverse direction for values people often look up.
| Inch (in) | Foot (ft) |
|---|---|
| 1 | 0.0833 |
| 2 | 0.1667 |
| 3 | 0.25 |
| 4 | 0.3333 |
| 6 | 0.5 |
| 9 | 0.75 |
| 15 | 1.25 |
| 27 | 2.25 |
| 30 | 2.5 |
| 45 | 3.75 |
| 63 | 5.25 |
| 66 | 5.5 |
| 69 | 5.75 |
| 73 | 6.0833 |
| 78 | 6.5 |
| 90 | 7.5 |
Measurements given in feet
| Item | Foot (ft) | Inch (in) |
|---|---|---|
| NBA three-point line, top of the arc | 23.75 | 285 |
| NBA three-point line, in the corners | 22 | 264 |
| Plywood sheet, long side | 8 | 96 |
| Plywood sheet, short side | 4 | 48 |
| Pickleball court length | 44 | 528 |
| Garage door, a common height | 7 | 84 |
Quick mental estimate
Multiply by 10, then add twice the feet: 7 ft → 70 + 14 = 84 in. For decimal feet, every tenth of a foot is 1.2 inches, so 0.4 ft → 4.8 in. Both steps are exact, since a foot is exactly 12 inches.
Use the converter or the charts when the exact figure matters.
The two units
Foot (ft): The international foot is exactly 0.3048 metres, or 12 inches. This converter uses that definition, not the former US survey foot of 1200/3937 metre used in some historical survey records.
Inch (in): The inch is exactly 2.54 centimetres, a value fixed by the 1959 international yard and pound agreement. It is used in the US and UK for screen sizes, tools, pipes and body measurements.
Frequently asked questions
How many inches is 5.5 feet?
Exactly 66 in, or 5 ft 6 in. The .5 is half a foot, six inches, not five inches; decimal feet always count tenths and hundredths of a foot.
How do I add feet-and-inches measurements?
Turn each one into inches, add, then split the total back into feet: 4 ft 7 in plus 3 ft 8 in is 55 + 44 = 99 inches in total, giving 8 ft 3 in.
What do the marks in 6′4″ mean?
The single prime (′) marks feet and the double prime (″) marks inches, so 6′4″ means six feet four inches, or 76 inches. Typed text often uses straight apostrophes and quotation marks for the same thing, and architectural drawings write lengths such as 12′-6″ for twelve feet six inches.
How precise is the result?
The converter uses the exact definitions above with browser floating-point arithmetic and shows up to 12 significant digits. The charts round to four decimal places for reading.
Sources
Last updated:
Page address with these inputs: https://kakao.mobile/tools/foot-to-inch-converter/
Cite or embed this tool
kakaoCalc. (2026, November 8). Feet to Inches Converter (ft to in). https://kakao.mobile/tools/foot-to-inch-converter/
“Feet to Inches Converter (ft to in).” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/foot-to-inch-converter/.
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