Instantly Convert Feet ↔ Inches — Both Directions
Convert feet to inches (ft → in) or inches to feet (in → ft) instantly. Get the exact conversion with formula breakdown, reference table, and related unit conversions — all free, no sign-up needed.
The foot and the inch are both units of length in the imperial and US customary systems. Our feet to inches converter handles both directions instantly using the exact conversion factor: 1 foot = 12 inches — no rounding, no approximation.
The foot (ft) is an imperial and US customary unit of length. Since 1959, the international foot has been defined as exactly 0.3048 metres, which means it equals exactly 12 inches. The foot is widely used in the United States, United Kingdom, and Canada for measuring height, distance, and building dimensions in everyday life and construction.
The inch (in or ″) is a unit of length in the imperial and US customary systems. One inch is defined as exactly 2.54 centimetres. There are 12 inches in one foot and 36 inches in one yard. Inches are commonly used for measuring screen sizes, small dimensions, paper sizes, and human body measurements in the US, UK, and Canada.
The conversion factor is exactly 1 foot = 12 inches — a whole number with no decimals or rounding. This makes feet-to-inches one of the simplest unit conversions. For the reverse, 1 inch = 1/12 foot ≈ 0.08333 feet. All conversions on this page use this exact value with zero rounding error.
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The conversion between feet and inches is based on a simple, exact whole-number relationship. One foot is defined as exactly 12 inches — this is not an approximation. It is an exact, legally defined relationship used worldwide in the imperial and US customary measurement systems.
The table below lists commonly needed feet-to-inches conversions. All values use the exact factor of 1 ft = 12 in. Additional columns show centimetres and metres for quick cross-reference with metric measurements.
| Feet (ft) | Inches (in) | Centimetres (cm) | Metres (m) | Common Context |
|---|---|---|---|---|
| 0.5 ft | 6 in | 15.24 cm | 0.1524 m | Half a foot / 6-inch ruler |
| 1 ft | 12 in | 30.48 cm | 0.3048 m | Standard ruler length |
| 1.5 ft | 18 in | 45.72 cm | 0.4572 m | Typical laptop screen diagonal |
| 2 ft | 24 in | 60.96 cm | 0.6096 m | Standard desk height (half) |
| 3 ft | 36 in | 91.44 cm | 0.9144 m | One yard / waist height |
| 4 ft | 48 in | 121.92 cm | 1.2192 m | Average 8-year-old height |
| 5 ft | 60 in | 152.40 cm | 1.5240 m | Average woman's height (US) |
| 5.5 ft | 66 in | 167.64 cm | 1.6764 m | 5 ft 6 in — common male height |
| 6 ft | 72 in | 182.88 cm | 1.8288 m | Tall adult / door frame height |
| 6.5 ft | 78 in | 198.12 cm | 1.9812 m | NBA player average height |
| 7 ft | 84 in | 213.36 cm | 2.1336 m | Very tall adult / standard door |
| 8 ft | 96 in | 243.84 cm | 2.4384 m | Standard ceiling height (US) |
| 10 ft | 120 in | 304.80 cm | 3.0480 m | 10-foot ceiling / basketball hoop |
| 12 ft | 144 in | 365.76 cm | 3.6576 m | Single car garage door width |
| 20 ft | 240 in | 609.60 cm | 6.0960 m | Shipping container length |
| 50 ft | 600 in | 1524 cm | 15.24 m | Swimming pool lap length (short) |
| 100 ft | 1200 in | 3048 cm | 30.48 m | NFL end zone to 30-yard line |
Need to convert the other way? The table below shows common inch values converted to feet. Values that don't divide evenly into 12 are shown as decimals and also expressed as feet + remaining inches for practical use.
| Inches (in) | Feet (ft) — Decimal | Feet + Inches | Centimetres (cm) |
|---|---|---|---|
| 1 in | 0.0833 ft | 0 ft 1 in | 2.54 cm |
| 6 in | 0.5 ft | 0 ft 6 in | 15.24 cm |
| 12 in | 1 ft | 1 ft 0 in | 30.48 cm |
| 18 in | 1.5 ft | 1 ft 6 in | 45.72 cm |
| 24 in | 2 ft | 2 ft 0 in | 60.96 cm |
| 30 in | 2.5 ft | 2 ft 6 in | 76.20 cm |
| 36 in | 3 ft | 3 ft 0 in | 91.44 cm |
| 48 in | 4 ft | 4 ft 0 in | 121.92 cm |
| 60 in | 5 ft | 5 ft 0 in | 152.40 cm |
| 66 in | 5.5 ft | 5 ft 6 in | 167.64 cm |
| 72 in | 6 ft | 6 ft 0 in | 182.88 cm |
| 84 in | 7 ft | 7 ft 0 in | 213.36 cm |
| 96 in | 8 ft | 8 ft 0 in | 243.84 cm |
| 120 in | 10 ft | 10 ft 0 in | 304.80 cm |
| 144 in | 12 ft | 12 ft 0 in | 365.76 cm |
The feet-to-inches conversion is one of the most common everyday unit conversions — used in construction, fashion, sports, and health. Here are the most frequent real-world scenarios where knowing feet to inches is essential.
Builders, carpenters, and DIY enthusiasts frequently switch between feet and inches when reading blueprints, cutting lumber, or measuring rooms. For example, an 8-foot ceiling = 96 inches, and a standard interior door of 6 ft 8 in = 80 inches tall. Most US tape measures show both feet and inches simultaneously.
Height in the US and UK is typically expressed in feet and inches (e.g. 5 ft 11 in), but medical forms, fitness apps, and international records often require height in total inches or centimetres. 5 ft 11 in = 71 inches; 6 ft = 72 inches. Converting feet-and-inches to total inches is a daily need for healthcare professionals and fitness trainers.
Screen sizes are universally quoted in inches (diagonal measurement), but room planning often uses feet. Knowing that a 55-inch TV = 4.58 feet helps when planning furniture layout. Conversely, a viewing distance of 8 feet = 96 inches is useful when checking recommended screen-to-seating distances for different TV sizes.
Garment patterns and fabric instructions in the US often mix feet and inches. Inseam lengths, hem allowances, and fabric widths (commonly 60 inches wide = 5 feet) all require easy conversion between the two units. A dress requiring 3 yards of fabric = 108 inches = 9 feet of fabric length.
Many US sports use feet and inches for field dimensions, athlete heights, and equipment specifications. A basketball hoop is exactly 10 feet = 120 inches high. An NFL field is 100 yards = 300 feet = 3,600 inches long. High jump and pole vault records are often reported in both feet-inches and metres.
Students learning the imperial system regularly practise converting between feet and inches. It is one of the first unit conversions taught in US elementary school maths. Understanding that 1 foot = 12 inches is also the foundation for learning larger imperial conversions such as yards (3 ft) and miles (5,280 ft). Visit Khan Academy for free lessons on unit conversion.
The National Institute of Standards and Technology (NIST) publishes the official definitions of US customary units including feet and inches, their exact metric equivalents, and legal standards for measurement in the United States.
Visit NIST →The Bureau International des Poids et Mesures (BIPM) is the international body that maintains the SI (metric) system. Their site explains how imperial units like the inch and foot relate to the metre — the SI base unit of length.
Visit BIPM →ConcreteMetric.com offers a growing library of free, accurate unit converters for length, area, energy, time, pressure, and more — all mobile-friendly and updated for 2026.
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