This calculator converts decimal feet into feet and inches format.
Looking to convert feet to inches? You’re in the right place. Whether you're working on a home improvement project, measuring your height, or dealing with blueprints, the feet to inches conversion is one of the most common and essential calculations in both professional and daily life. In this complete guide, you'll learn how to convert feet to inches manually and with a calculator, see real-life examples, explore use cases, and understand why this conversion is so important.
A foot (plural: feet) is a unit of length in the imperial and US customary measurement systems. It is mostly used in the United States, Canada, and the United Kingdom. The foot is commonly used to measure height, length of rooms, buildings, and even elevation.
An inch is a smaller imperial unit of length often used for detailed or smaller measurements such as screen sizes, fabric lengths, and components in construction or engineering.
The conversion from feet to inches is straightforward and based on the fact that:
1 foot = 12 inches
To convert any value in feet to inches, use the formula:
Inches = Feet × 12
Because there are 12 inches in a foot. This fixed ratio makes it easy to convert between the two units without needing complex calculations.
5.8 × 12 = 69.6 inches
| Feet (ft) | Inches (in) |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 6 | 72 |
| 7 | 84 |
| 8 | 96 |
| 9 | 108 |
| 10 | 120 |
Don’t want to do the math yourself? Use our easy-to-use feet to inches converter! Just type your feet value into the input box and the calculator will instantly display the result in inches. This tool is especially helpful for:
Height is often measured in feet and inches, but sometimes you'll see it written in just feet (e.g., 5.75 ft). You can convert this to inches easily: 5.75 × 12 = 69 inches.
Blueprints and measurements often need to be in inches for precision. For example, a wall that’s 9.5 ft long equals 114 inches.
Television and monitor screens are typically measured in inches, so converting room dimensions in feet helps choose the right size screen.
Furniture dimensions, room lengths, and window sizes may need to be converted to inches for accurate layout planning.
To go from inches back to feet, use the formula:
Feet = Inches ÷ 12
Example: 72 inches ÷ 12 = 6 feet
There are 12 inches in 1 foot.
6.5 × 12 = 78 inches
5 feet = 60 inches; 60 + 9 = 69 inches
5.25 × 12 = 63 inches
Yes! Use our free feet to inches calculator above for instant results.
The feet to inches conversion is one of the simplest but most useful calculations you'll encounter in daily life, construction, design, and education. With the standard ratio of 1 foot = 12 inches, you can easily convert any value using the formula Inches = Feet × 12. Whether you're doing a home renovation or entering height into a form, you can now handle the conversion confidently and accurately. Use our free tools, tables, and examples whenever you need a quick and reliable result!
Next steps? Explore our other helpful conversion guides:
An inch, symbolized as in, is one of the most recognized and commonly used units of length in the United States, Canada, and the United Kingdom. Though the metric system has become the global standard in most countries, inches are still used in various fields including construction, design, screen sizes, tools, and daily life. In this comprehensive guide, we’ll explore what inches are, their history, how they compare with metric units, conversion formulas, real-life uses, and frequently asked questions.
An inch is a unit of length in the Imperial and U.S. customary measurement systems. It is defined as exactly:
The inch is abbreviated as in or marked with a double prime symbol (″). For example, 6 inches can be written as 6 in or 6″.
The word "inch" originates from the Latin word uncia, meaning a one-twelfth part. Historically, the inch was defined based on the width of a human thumb or three grains of barley placed end to end.
In 1959, countries such as the United States and members of the Commonwealth agreed to standardize the inch as exactly 2.54 centimeters—known as the “international inch.”
in × 2.54 = cmin × 25.4 = mmin × 0.0254 = min ÷ 12 = ftTVs, monitors, and mobile devices list screen sizes in inches, measured diagonally from one corner of the screen to the opposite corner.
Inches are used to measure wood, piping, metal, nails, bolts, and other materials. It allows for precise yet practical dimensions in construction and remodeling.
Wrenches, screwdrivers, drill bits, and fasteners are often measured in inches, especially in regions that follow the Imperial system.
Waist sizes, collar sizes, and inseams are often measured in inches. For example, men’s jeans might say “34x30,” meaning a 34-inch waist and 30-inch leg length.
Page dimensions, photo sizes, and posters are often measured in inches, such as 8.5"x11" paper size (standard U.S. letter).
While most of the world uses centimeters due to the metric system, inches are still the standard in the U.S., especially in industries like manufacturing and engineering.
Understanding both systems is essential for global compatibility and technical precision.
Inch rulers are divided into small segments. Most rulers in the U.S. divide each inch into 16 or 32 smaller parts.
This allows users to measure very small dimensions accurately, which is crucial in carpentry and machining.
In math problems, inches are used to calculate length, area, and volume:
12 inches make up 1 foot.
Use the formula: cm × 0.3937 = inches. For example, 10 cm × 0.3937 ≈ 3.937 in.
It is a longstanding convention in electronics, and the diagonal measurement gives a standardized size across models.
No. Inch belongs to the Imperial and U.S. customary systems, not the metric system.
| Inches | Centimeters | Millimeters | Feet |
|---|---|---|---|
| 1 in | 2.54 cm | 25.4 mm | 0.083 ft |
| 5 in | 12.7 cm | 127 mm | 0.417 ft |
| 12 in | 30.48 cm | 304.8 mm | 1 ft |
| 24 in | 60.96 cm | 609.6 mm | 2 ft |
| 36 in | 91.44 cm | 914.4 mm | 3 ft |
| 72 in | 182.88 cm | 1828.8 mm | 6 ft |
If you frequently need to convert inches to other units, try using our fast and accurate online tools like:
These tools offer precise results and save time in manual calculations, especially for professionals.
Inches remain a vital part of everyday measurement systems in various countries and industries. Whether you're buying a TV, designing furniture, working with tools, or tailoring clothes, understanding inches is essential. With its rich history and ongoing relevance, the inch continues to be a practical and accurate unit of length.
Need conversions on the go? Bookmark our Inch Conversion Calculator and make precise measurements in just a click!