How Do You Convert Feet to Inches?
Multiply the number of feet by 12 to get inches. The formula is: Inches = Feet x 12. For mixed measurements like 5 feet 10 inches, multiply the feet by 12 and add the remaining inches: (5 x 12) + 10 = 70 inches.
Dana Kowalski measures spaces for kitchen renovations in Pinewood Falls homes. A countertop opening is 3.5 feet wide. Converting: 3.5 x 12 = 42 inches. She orders a 42-inch countertop section from the supplier, who lists materials in inches. The conversion between feet and inches is constant in construction work.
Height Conversion Reference
| Height (ft/in) | Total Inches | Centimeters |
|---|---|---|
| 4'10" | 58 in | 147.3 cm |
| 5'0" | 60 in | 152.4 cm |
| 5'2" | 62 in | 157.5 cm |
| 5'4" | 64 in | 162.6 cm |
| 5'6" | 66 in | 167.6 cm |
| 5'8" | 68 in | 172.7 cm |
| 5'10" | 70 in | 177.8 cm |
| 6'0" | 72 in | 182.9 cm |
| 6'2" | 74 in | 188.0 cm |
| 6'4" | 76 in | 193.0 cm |
| 6'6" | 78 in | 198.1 cm |
Construction and Home Improvement
Lumber and Materials
Lumber is sold in foot lengths (8-foot, 10-foot, 12-foot boards), but cutting measurements are typically in inches. A 10-foot 2x4 is 120 inches long. Dana needs four 28-inch pieces from one board: 4 x 28 = 112 inches, plus saw kerf allowance — it fits in a 120-inch board with room to spare.
Room Dimensions
A standard room might be 12 feet x 14 feet. In inches, that is 144 x 168 inches. When ordering carpet or flooring by the square foot, the conversion is straightforward — but when cutting trim molding, Dana works in inches to get precise fits around corners and door frames.
TV and Monitor Sizes
Screen sizes are measured diagonally in inches. A 65-inch TV is 5.42 feet across the diagonal. The actual width is about 56.7 inches (4.72 feet) for a 16:9 aspect ratio. Sam Okafor helps clients plan media wall dimensions: a 65-inch TV needs at least 60 inches (5 feet) of wall width plus mounting space.