How to Convert Feet to Inches
To convert feet to inches, multiply the number of feet by 12, because there are 12 inches in every foot. The formula is inches = feet × 12. The converter above does it instantly for whole feet or decimals. The math is simple enough to do in your head for round numbers: 3 feet is 36 inches, 5 feet is 60 inches.
The Feet to Inches Formula
Twelve inches make exactly one foot, so multiplying by 12 is all it takes. For a measurement given in feet and inches, multiply only the feet by 12 and then add the extra inches — so 5 feet 6 inches is (5 × 12) + 6 = 66 inches. For a decimal like 5.5 feet, 5.5 × 12 = 66 inches as well.
Worked Examples
1 foot: 12 inches. 3 feet: 36 inches. 5 feet: 60 inches. 6 feet: 72 inches. A 5 foot 9 inch height is 69 inches, and a 10 foot ceiling is 120 inches. These conversions are everyday tasks for measuring height, furniture, and building materials.
Common Foot to Inch Values
Quick reference: 1 ft = 12 in, 2 ft = 24 in, 4 ft = 48 in, 6 ft = 72 in, 8 ft = 96 in, and 10 ft = 120 in. To convert a height in feet and inches to total inches, multiply the feet by 12 and add the inches — useful when a form or product spec asks for a single inch figure.
Why Convert Feet to Inches?
Feet and inches are the standard units for length and height across the United States, and many measurements need to move between them. You might convert feet to inches to enter a single number into a form, to measure precisely for a shelf or curtain, to compare TV and monitor sizes, or to follow building plans that specify inches. Converting to inches gives you a finer unit for accurate marking and cutting, and the tool handles decimals so it works for any measurement, not just whole feet.
Inches as the Precise Unit
Inches are often the working unit for hands-on tasks because they allow finer detail than feet, and they subdivide neatly into halves, quarters, eighths, and sixteenths for measuring and cutting. When a plan lists a dimension in feet, converting to inches before you measure reduces mistakes, since most tape measures and rulers are marked primarily in inches. For very fine work, you can go a step further and convert inches to millimeters, but for most household and construction jobs, feet-to-inches is the conversion you reach for most.
Frequently Asked Questions
How many inches is 1 foot?
1 foot equals exactly 12 inches.
How do I convert feet to inches?
Multiply the feet by 12. For example, 5 feet × 12 = 60 inches.
What is 6 feet in inches?
6 feet is 72 inches.
Why Inches for Hands-On Work
When it is time to actually measure and cut, inches are usually the working unit because they offer finer detail than feet and line up with the markings on tape measures and rulers. Converting a plan’s feet into inches before you start reduces mistakes: instead of eyeballing “about three and a half feet,” you mark 42 inches exactly. This matters for carpentry, framing, hanging cabinets, sewing, and any project where a small error compounds. The conversion is a simple times-12, but doing it up front keeps the whole job accurate.
Heights, TVs, and Furniture
Feet-to-inches conversions show up all over daily life. A person who is 5 feet 10 inches tall is 70 inches; a 6-foot bookshelf is 72 inches; an 8-foot table is 96 inches. Screen sizes are quoted in inches, so a 4.5-foot-wide media wall has room for a TV up to about 54 inches. Furniture and appliance specs frequently mix feet and inches, so converting to a single inch figure makes it easy to compare items and check they will fit. The converter handles decimals, so 7.25 feet correctly becomes 87 inches.