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Feet to Inches Converter

Convert feet to inches and inches to feet instantly. Bidirectional length converter with formula and common values.

ft

Inches

66

in

5.5 ft = 66 in

in = ft × 12

Feet to Inches: 1 ft equals 12 in. To convert feet to inches, multiply by 12 (in = ft × 12). For example, 10 ft = 120 in.

How to Convert Feet to Inches

To convert from feet to inches, multiply the value by 12. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Feet to Inches: in = ft × 12
  • Inches to Feet: ft = in ÷ 12

Feet to Inches Conversion Chart

Feet (ft)Inches (in)
0.11.2
0.253
0.56
112
224
336
560
10120
20240
25300
50600
1001200
2503000
100012000

Understanding the Units

What is a Feet?

The foot is a US customary and imperial unit equal to exactly 0.3048 meters and is divided into 12 inches.

Originally based on the length of a human foot; standardized by the 1959 international yard and pound agreement.

Common contexts: real estate, aviation, construction.

What is an Inche?

The inch is a US customary and imperial unit equal to exactly 25.4 millimeters by the 1959 international yard and pound agreement.

From Old English ynce, derived from Latin uncia ("twelfth"), originally a twelfth of a Roman foot.

Common contexts: construction, screen sizes, apparel.

Real-World Reference Points

Item Feet (ft) Inches (in)
Average door height6.780.4
Single story house10120
NBA basket height10120

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FAQ

How many inches are in a foot?

One foot equals exactly 12 inches.

How do I convert feet to inches?

Multiply the number of feet by 12. For example, 5.7 ft × 12 = 68.4 inches.

Why are there 12 inches in a foot?

The 12-inch foot dates back to ancient Rome. Twelve was favored because it divides evenly by 2, 3, 4, and 6.

How many feet are in an inch?

One inch equals approximately 0.0833 feet (1/12 of a foot).

How many inches are in 1 feet?

1 ft equals 12 in.

How do you convert feet to inches?

Multiply the feet value by 12. Formula: in = ft × 12.

How many inches are in 5 feet?

5 ft = 60 in.

How do you convert inches back to feet?

Use the inverse formula: ft = in ÷ 12. For example, 1 in = 0.083333 ft.

What is the difference between Feet and Inch?

The foot is a US customary and imperial unit equal to exactly 0.3048 meters and is divided into 12 inches. The inch is a US customary and imperial unit equal to exactly 25.4 millimeters by the 1959 international yard and pound agreement.