How to convert feet to inches

Any physical quantity can be written as:

Q = nu, where n = numerical value and u = unit used

We know that:

1 ft = 12 in

1 in = 0.0833333333 ft

So, You can easily convert your quantity in feet to inches by simply multiply it by 12

Hence, general formula To convert feet to inches:

p(in) = 12 × p(ft), where p is the numerical value

For Example:

To convert 15 feet to inches:

15 ft = 15 × 12 in = 180 in

Popular feet to inches conversion table

Foot (ft) Inch (in)
1 ft 12 in
2 ft 24 in
3 ft 36 in
4 ft 48 in
5 ft 60 in
6 ft 72 in
7 ft 84 in
8 ft 96 in
9 ft 108 in
10 ft 120 in
20 ft 240 in
30 ft 360 in
40 ft 480 in
50 ft 600 in
60 ft 720 in
70 ft 840 in
80 ft 960 in
90 ft 1080 in
100 ft 1200 in

About Foot (ft)

Name of unit: Foot

Abbreviation: ft

Unit system: foot-pound-second (FPS)

Definition: Foot is the unit of length used in both British Imperial (BI) and US Customary (USC) systems of measurements for measuring length of large objects. One foot is equal to 12 inches or 3 yards . Yard, inch, foot and mile are US Customary units of length. In metric system , one foot is equal to 0.3048 m or 30.48 cm.

Uses of foot: Foot is the larger unit of length in Imperial system used to measure the height of person, building , window , wall , mountains etc and the length of objects like a car, cloth piece etc . It is used to measure the length of roads , maps, highways etc. Foot is also used in another various fields like construction work, real state, land dimensions measurements etc .

Countries that use foot: Foot is used to measure the length or height of objects in the US Customary system of measurements. So the countries that use the foot as the unit of length are Canada, the United States, the United Kingdom, Liberia and Myanmar.

About Inch (in)

Name of unit: Inch

Abbreviation: in

Symbol: ''

Unit system: Imperial System

Definition: Inch is the unit of length used in both British Imperial (BI) and US Customary (USC) systems of measurements. One inch is equal to 1/12th of a foot or 1/36th of a yard. Yard, inch, foot and mile are US Customary units of length. In metric system , one inch is equal to 2.54 cm or 0.0254 m.

Uses of inch: Inch is used to measure the length, distance or height of smaller things in our day-to-day life.

Example: paper, clothes, furniture etc. Inch is used to measure the length and size of display screens for laptops, LCDs etc like 43 inch smart tv ( 43'' ).

Countries that use Inch: Inch is used to measure the length or height of objects in the US Customary system of measurements. So the countries that use the inch as the unit of length are Canada, the United States, the United Kingdom, Liberia and Myanmar. Also Japan and Europe use inches for measuring display screens.