Feet to Inches Converter
At the doctor's office the nurse asks how tall you are and you answer five-ten without thinking about it, but the chart needs a whole-inch number and the conversation pauses while she types seventy. That translation — feet-and-a-fraction to straight inches — runs through height tracking, lumber cuts, and anywhere two people are talking about the same dimension but in different shorthand. Feet-to-inches is the everyday conversion of American height, lumber, and rope: useful precisely because most people quote their own height or a board length in feet with a fractional tail, yet the number the pharmacist, the big-box retailer's inventory system, or the sporting-goods catalog needs is the raw inch count.
Calculator
1 × 12 = 12.0000
Formula
Multiply feet by 12 and add any leftover inches. A height of 5 feet 10 inches becomes 5 × 12 = 60, plus the trailing 10, for a total of 70 inches. For decimal feet, multiply the decimal portion by 12 as well: 6.5 feet equals 6 × 12 + 0.5 × 12 = 78 inches. The memorized anchor points most people draw on: 5 feet = 60 inches, 6 feet = 72 inches, 7 feet = 84 inches. Any round-foot height collapses to a multiple-of-12 inch value, and every additional foot simply adds a dozen.
Where You'll Use This
Height measurement is the most universal feet-to-inches application. A driver's license lists height in feet-and-inches (5'10") while medical intake systems record it as total inches (70). A six-foot-two basketball player translates to 74 inches on the roster. Lumber yards stocking standard eight-foot two-by-four framing members list that product as 96 inches in the order system, and a twelve-foot board is 144 inches for cut-planning. Rope and cable sold by the foot gets cut to specific inch lengths on demand — a 3-foot climbing loop is a 36-inch order. Fishing-rod specs advertise as 7-foot medium action (84 inches) but ship in a case labeled 84" for courier logistics. Boat trailer lengths posted as 18 feet (216 inches) matter when fitting a garage depth. Closet designers quoting a 4-foot hanging rod section translate to the 48 inches of hardware they need to buy, and drapery retailers list 84-inch and 96-inch curtain panel lengths as the 7-foot and 8-foot ceiling-height defaults that most American homes wear.
Reference Table
| From (Feet) | To (Inches) |
|---|---|
| 0.25 | 3 |
| 0.5 | 6 |
| 0.75 | 9 |
| 1 | 12 |
| 1.5 | 18 |
| 2 | 24 |
| 2.5 | 30 |
| 3 | 36 |
| 3.5 | 42 |
| 4 | 48 |
| 4.5 | 54 |
| 5 | 60 |
| 5.5 | 66 |
| 5.83 | 69.96 |
| 6 | 72 |
| 6.17 | 74.04 |
| 6.5 | 78 |
| 7 | 84 |
| 7.5 | 90 |
| 8 | 96 |
| 9 | 108 |
| 10 | 120 |
| 12 | 144 |
| 16 | 192 |
| 20 | 240 |
A Bit of History
The foot as a twelve-inch unit arrived in North America via English colonial surveying practice and never left, even as the rest of the world migrated to metric. The Continental Congress passed a 1790s measurement proposal that would have imposed decimal units on the young republic, but it stalled in legislative limbo and commercial practice simply locked in the inherited system. Thomas Jefferson advocated a decimal-foot scheme, but lumber mills and carpenters already ran on fractional inches and were not about to retool. By the time the 1959 international agreement defined the foot as exactly 0.3048 meters, American building codes and consumer habits had compounded two centuries of momentum behind the twelve-inch foot.
FAQ
How many inches is 5 foot 10?
Five foot ten equals 70 inches — 5 × 12 gives 60, plus the extra 10 inches bringing the total to 70. This shows up on medical intake forms and department of motor vehicle records constantly, since most American adults state height in the feet-and-inch form but many data systems store it as a single integer inch count.
What is 6 feet in inches?
Six feet equals exactly 72 inches. The clean conversion makes this a common design reference point — a 72-inch sofa fits a standard 6-foot wall section, a 72-inch shower rod spans a typical alcove tub, and a 6-foot ladder at 72 inches closed length is the shortest step ladder that reaches an 8-foot ceiling safely.
How many inches is 8 feet?
Eight feet equals 96 inches. This matters because 8-foot is the standard American ceiling height and 96 inches is the corresponding wall-stud length that frames into it. Drywall sheets come 48 × 96 inches to cover one wall vertically in a single pane, and doors at 96-inch frames are now popular in contemporary builds replacing the older 80-inch standard.
How do I convert feet and inches to just inches?
Multiply the feet by 12 and add the inch remainder. A height of 5 feet 7 inches becomes 5 × 12 + 7 = 67 inches. For a board measuring 3 feet 4.5 inches long, you get 3 × 12 + 4.5 = 40.5 inches. Keep the fractional tail with the inch portion — don't convert the fraction to a decimal foot midway because you'll lose precision on quarter-inch increments.