Convert length units instantly — meters, feet, inches, centimeters, kilometers, miles, and more.
| Unit | Name | Value |
|---|---|---|
| m | Meter | 0.3048 |
| km | Kilometer | 0.0003048 |
| cm | Centimeter | 30.48 |
| mm | Millimeter | 304.8 |
| in | Inch | 12 |
| yd | Yard | 0.33333333 |
| mi | Mile | 0.00018939394 |
| nmi | Nautical Mile | 0.00016457883 |
Multiply the number of Foots by 12 to get Inchs. Formula: in = ft × 12. Example: 10 ft × 12 = 120 in. To reverse, divide Inchs by 12 to get Foots.
| Foot (ft) | Inch (in) |
|---|---|
| 0.001 ft | 0.012 in |
| 0.01 ft | 0.12 in |
| 0.1 ft | 1.2 in |
| 0.5 ft | 6 in |
| 1 ft | 12 in |
| 2 ft | 24 in |
| 5 ft | 60 in |
| 10 ft | 120 in |
| 20 ft | 240 in |
| 50 ft | 600 in |
| 100 ft | 1200 in |
| 250 ft | 3000 in |
| 500 ft | 6000 in |
| 1000 ft | 12000 in |
| 10000 ft | 120000 in |
To convert Foot to Inch, multiply by 12. Example: 10 ft = 120 in
To convert Inch back to Foot, divide by 12 (multiply by 0.0833333). Use the swap button above.
Start with 100 Foots = 1200 in as your reference point. Scale up or down from there.
Every carpenter, builder, and DIY enthusiast in the US converts between feet and inches constantly. Tape measures show both, lumber is sold by the foot, and cuts are made to the inch — the foot-to-inch conversion is the most-used measurement calculation in US construction.
Height is expressed in feet and inches in the US (5'9" = 69 inches). Medical records, passport applications, athletic profiles, and online dating profiles all require this conversion — it is performed millions of times daily.
TV and monitor sizes are expressed in diagonal inches (65" TV) while room layout and furniture dimensions use feet. Interior designers and homeowners convert between feet and inches for every room planning decision.
Pipe run distances are measured in feet for ordering while fitting dimensions and pipe diameters use inches. Plumbers convert between feet and inches for every materials estimate and installation job.
Fabric is sold by the yard (36 inches = 3 feet) in the US. Seamstresses and tailors routinely convert between feet and inches when converting patterns, calculating fabric requirements, and specifying garment measurements.
Aircraft altitudes are expressed in feet (cruise altitude: 35,000 ft) while cabin dimensions and cargo specifications use inches. Pilots, aircraft engineers, and cargo planners convert between feet and inches in every operational document.
The Foot is a unit of Length measurement (symbol: ft). 1 ft = 12 in. Used in scientific and practical Length measurement applications.
The Inch is a unit of Length measurement (symbol: in). It is part of an internationally recognised measurement system used alongside the Foot.
The foot is one of humanity's oldest measurement units, used by ancient Egyptians, Greeks, and Romans — each with slightly different values. The English statute foot was standardised at 12 inches in 1305 under King Edward I. Its definition was refined multiple times over centuries, finally fixed as exactly 0.3048 metres under the International Yard and Pound Agreement of 1959, signed by the US, UK, Canada, Australia, and South Africa. Today the foot remains official in the US, UK (for road distances and aviation), and international aviation worldwide.
The inch has one of the most colourful origin stories in measurement history. An English statute from 1324 under King Edward II defined it as 'three grains of barley, dry and round, placed end to end'. Before that, it was often defined as the width of a thumb — hence the word in many languages (French: 'pouce', Dutch: 'duim', both meaning thumb). The inch was standardised at exactly 25.4 mm in 1959 under the International Yard and Pound Agreement. It remains the dominant length unit in the US and is universally used for screen sizes globally.
Common use: Foot to Inch conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.