How to convert feet to inches

How to convert feet to inches

1 foot is equal to 12 inches:

1ft = 12″

The distance d in inches (″) is equal to the distance d in feet (ft) times 12:

d(″) = d(ft) × 12

Example 

Convert 2 feet to inches:

d(″) = 2ft × 12 = 24″

Feet (ft) Inches (“)
0.01 ft 0.12 ″
0.1 ft 1.2 ″
0.2 ft 2.4 ″
0.3 ft 3.6 ″
0.4 ft 4.8 ″
0.5 ft 6.0 ″
0.6 ft 7.2 ″
0.7 ft 8.4 ″
0.8 ft 9.6 ″
0.9 ft 10.8 ″
1 ft 12 ″
2 ft 24 ″
3 ft 36 ″
4 ft 48 ″
5 ft 60 ″
6 ft 72 ″
7 ft 84 ″
8 ft 96 ″
9 ft 108 ″
10 ft 120 ″
100 ft 1200 ″

How to convert millimeters to inches

1 millimeter is equal to 0.03937007874 inches:

1mm = (1/25.4)″ = 0.03937007874″

The distance d in inches (″) is equal to the distance d in millimeters (mm) divided by 25.4:

d(″) = d(mm) / 25.4

Example

Convert 20 mm to inches:

d(″) = 20mm / 25.4 = 0.7874″

Millimeters (mm) Inches (“)
(decimal)
Inches (“)
(fraction)
0.01 mm 0.0004 ″ 0 ″
0.1 mm 0.0039 ″ 0 ″
1 mm 0.0394 ″ 3/64 ″
2 mm 0.0787 ″ 5/64 ″
3 mm 0.1181 ″ 1/8 ″
4 mm 0.1575 ″ 5/32 ″
5 mm 0.1969 ″ 13/64 ″
6 mm 0.2362 ″ 15/64 ″
7 mm 0.2756 ″ 9/32 ″
8 mm 0.3150 ″ 5/16 ″
9 mm 0.3543 ″ 23/64 ″
10 mm 0.3937 ″ 25/64 ″
20 mm 0.7874 ″ 25/32 ″
30 mm 1.1811 ″ 1 3/16 ″
40 mm 1.5784 ″ 1 37/64 ″
50 mm 1.9685 ″ 1 31/32 ″
60 mm 2.3622 ″ 2 23/64 ″
70 mm 2.7559 ″ 2 3/4 ″
80 mm 3.1496 ″ 3 5/32 ″
90 mm 3.5433 ″ 3 35/64 ″
100 mm 3.9370 ″ 3 15/16 ″

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