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Understanding how to convert feet to inches is a basic but essential skill, especially in fields like construction, engineering, and everyday measuring tasks. Since there are 12 inches in a foot, the math is straightforward—but if you're dealing with multiple measurements or need to be precise, it helps to have a reliable reference. This page provides an interactive calculator, conversion charts, and visual tools to make your conversions quick and accurate.
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| Feet \ Inches | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
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A foot (plural: feet) is a unit of length in the imperial and US customary measurement systems. One foot equals exactly 12 inches or 30.48 centimeters. The symbol for feet is ft or the prime symbol (′).
An inch is a unit of length equal to 1/12 of a foot or exactly 2.54 centimeters. The symbol for inches is in or the double prime symbol (″). Inches are commonly used for measuring smaller distances.
Feet and inches are commonly used in construction, architecture, interior design, and everyday measurements in the United States. Height, room dimensions, and furniture sizes are typically measured in feet and inches.
The conversion between feet and inches is exact: 1 foot = 12 inches. This relationship has been standardized and is used universally in countries that use the imperial or US customary system.
| Feet | Inches | Centimeters | Millimeters |
|---|---|---|---|
| 1 ft | 12 in | 30.48 cm | 304.8 mm |
| 2 ft | 24 in | 60.96 cm | 609.6 mm |
| 3 ft | 36 in | 91.44 cm | 914.4 mm |
| 4 ft | 48 in | 121.92 cm | 1219.2 mm |
| 5 ft | 60 in | 152.40 cm | 1524.0 mm |
| 6 ft | 72 in | 182.88 cm | 1828.8 mm |
| 7 ft | 84 in | 213.36 cm | 2133.6 mm |
| 8 ft | 96 in | 243.84 cm | 2438.4 mm |
| 9 ft | 108 in | 274.32 cm | 2743.2 mm |
| 10 ft | 120 in | 304.80 cm | 3048.0 mm |
There are exactly 12 inches in one foot. This is a fixed conversion factor in the imperial and US customary measurement systems. To convert feet to inches, multiply the number of feet by 12.
To convert feet to inches, multiply the number of feet by 12. For example, 5 feet = 5 × 12 = 60 inches. The formula is: inches = feet × 12.
To convert inches to feet, divide the number of inches by 12. For example, 72 inches = 72 ÷ 12 = 6 feet. The formula is: feet = inches 12.
5 feet 10 inches equals 70 inches. To calculate: (5 feet × 12 inches/foot) + 10 inches = 60 + 10 = 70 inches.
One foot equals exactly 30.48 centimeters. This is because 1 inch = 2.54 cm, and 1 foot = 12 inches, so 12 × 2.54 = 30.48 cm.
One foot equals exactly 304.8 millimeters. This is because 1 inch = 25.4 mm, and 1 foot = 12 inches, so 12 × 25.4 = 304.8 mm.
Feet and inches are both units of length in the imperial and US customary systems. One foot equals 12 inches. Feet are used for measuring larger distances (height, room dimensions), while inches are used for smaller measurements (screen sizes, fabric width).
To convert feet and inches to total inches, multiply the feet by 12 and add the remaining inches. For example, 5 feet 7 inches = (5 × 12) + 7 = 67 inches.
