📏Length Converter

Convert Foot to Inch

Live bidirectional calculator for Feet (ft) and Inches (in) with verified formula and conversion charts.

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Length8 units

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From

Decimals:

Show Inch Fractions (1/16")

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How the Calculation Works (Linear Scaling)

Formula:

Inch = Foot × 12

Substitution:1 × 12

Calculated Result:12 in

Since 1 Foot = 12 Inches, multiply the value in Feet by 12.

Standard Ratio Factor:1 ft = 12 in

Foot to Inch Conversion Table

Precomputed values for quick reference and printing.

Foot → Inch(ft → in)

Foot	Inch
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
15 ft	180 in
20 ft	240 in
25 ft	300 in
30 ft	360 in
40 ft	480 in
50 ft	600 in
75 ft	900 in
100 ft	1200 in

Inch → Foot(in → ft)

Inch	Foot
1 in	0.0833 ft
2 in	0.1667 ft
3 in	0.25 ft
4 in	0.3333 ft
5 in	0.4167 ft
6 in	0.5 ft
7 in	0.5833 ft
8 in	0.6667 ft
9 in	0.75 ft
10 in	0.8333 ft
15 in	1.25 ft
20 in	1.6667 ft
25 in	2.0833 ft
30 in	2.5 ft
40 in	3.3333 ft
50 in	4.1667 ft
75 in	6.25 ft
100 in	8.3333 ft

📌 Standard Benchmark Reference Values

12 inches=1 foot

Standard imperial/US customary definition.

Exact Ratio

About Foot (ft)

The international foot is defined as exactly 0.3048 meters, or 12 inches.

History: One of the oldest units, used in ancient civilizations. Standardized internationally in 1959 as exactly 0.3048 m.

Common Uses: Building construction, real estate (room dimensions), human height, and aviation altitude.

About Inch (in)

The inch is defined as exactly 25.4 millimeters (0.0254 meters) by international agreement since 1959.

History: Historically based on the width of a human thumb. Standardized internationally in 1959 when English-speaking nations agreed on the exact metric equivalence.

Common Uses: Screen sizes, pipe diameters, construction lumber, and everyday measurement in the US, UK, and Canada.

❓ Frequently Asked Questions

How many Inches are in 1 Foot?

There are exactly 12 Inches in 1 Foot (1 ft = 12 in).

What is the formula to convert Foot to Inch?

The formula is: Inch = Foot × 12. Since 1 Foot = 12 Inches, multiply the value in Feet by 12.

How do I convert 1 ft to in manually?

To convert 1 ft to in: apply the formula Inch = Foot × 12. Substituting gives: 1 × 12 = 12 in.

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Related Conversion Calculators

Inch to Foot→Foot to Meter→Centimeter to Inch→Millimeter to Inch→Inch to Centimeter→Meter to Foot→Kilometer to Mile→Mile to Kilometer→