Feet to Inch Converter

Instant, two-way conversion across common engineering units.

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1 ft = 12 in(FootInch)

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Converting feet to inches

To convert feet to inches, multiply the value by 12. Length values feed directly into setting out, spans and drawing dimensions, so the converter keeps full decimal precision in both directions.

Visual scale

To scale
1 foot = 12 inches.
1 inch = 0.083333333 feet.

Feet (ft)

The foot (ft) equals 12 inches and is the main building unit in US practice.

Origin
An old body-based unit standardized in 1959 as exactly 0.3048 m across English-speaking countries.
Where it is used
Used for floor-to-floor heights, spans, room sizes and setting out on US and partly UK construction projects.
Relation to SI
1 ft = 0.3048 m exactly.

Inch (in)

The inch (in) is the base small unit of the imperial and US customary length system.

Origin
Historically derived from thumb and barleycorn measures, it has been defined internationally since 1959 as exactly 25.4 mm.
Where it is used
Standard on US and UK drawings, pipe and fastener sizes, screen dimensions and imported product data.
Relation to SI
1 in = 0.0254 m exactly, by international agreement.

Frequently asked questions

How many inches are in one foot?

1 ft equals 12 in.

How do I convert feet to inches?

Multiply the value by 12. For example, 10 ft equals 120 in.

How do I convert back from inches to feet?

1 in equals 0.083333333 ft. The converter above works in both directions, so you can type into either field.

Should I work in millimeters or meters on drawings?

Most architectural and structural drawings outside the US are dimensioned in millimeters to avoid decimal points, while site levels, grids and areas are stated in meters.

Are the imperial values here exact?

Yes. The inch has been defined as exactly 25.4 mm since 1959, so foot, yard and mile conversions are exact rather than rounded.

Is this length converter free to use?

Yes. Every unit conversion runs in your browser, needs no account and is free for professional use.

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