Inches to CM Converter
Updated Formulas shown
Multiply inches by 2.54 to get centimeters: 12 in = 30.48 cm. You can type tape-measure fractions (3 1/2, 7/8) or feet and inches (5'9") straight into the converter.
Formula: centimeters = inches × 2.54 (exact)
Common values: inches → centimeters
| inches | centimeters |
|---|---|
| 2.54 cm | |
| 5.08 cm | |
| 7.62 cm | |
| 12.7 cm | |
| 25.4 cm | |
| 50.8 cm | |
| 63.5 cm | |
| 127 cm | |
| 254 cm | |
| 635 cm | |
| 1,270 cm | |
| 2,540 cm |
12 in in every length unit
- 304.8 mm
- 30.48 cm
- 0.3048 m
- 0.0003048 km
- 1 ft
- 0.333333 yd
- 0.000189394 mi
- 12,000 mil
- 304,800 µm
- 0.000164579 nmi
How to convert inches to centimeters
- Type the value in inches into the converter (or into the right-hand box to go the other way).
- Multiply by 2.54 to get centimeters.
- Round to a sensible precision with the Decimals control; the table below covers the values people look up most.
Inch to centimeter formula
centimeters = inches × 2.54 — 1 in = 2.54 cm. The factor is exact by definition (NIST SP 811), so any rounding comes only from how many decimals you keep.
in to cm conversion table
Fractions of an inch
| inches | decimal | cm | mm |
|---|---|---|---|
| 1/16″ | 0.0625 | 0.159 | 1.59 |
| 1/8″ | 0.125 | 0.318 | 3.18 |
| 3/16″ | 0.1875 | 0.476 | 4.76 |
| 1/4″ | 0.25 | 0.635 | 6.35 |
| 5/16″ | 0.3125 | 0.794 | 7.94 |
| 3/8″ | 0.375 | 0.953 | 9.52 |
| 7/16″ | 0.4375 | 1.111 | 11.11 |
| 1/2″ | 0.5 | 1.27 | 12.7 |
| 9/16″ | 0.5625 | 1.429 | 14.29 |
| 5/8″ | 0.625 | 1.588 | 15.88 |
| 11/16″ | 0.6875 | 1.746 | 17.46 |
| 3/4″ | 0.75 | 1.905 | 19.05 |
| 13/16″ | 0.8125 | 2.064 | 20.64 |
| 7/8″ | 0.875 | 2.223 | 22.22 |
| 15/16″ | 0.9375 | 2.381 | 23.81 |
| 1″ | 1 | 2.54 | 25.4 |
Whole inches
| inches | cm | feet & inches |
|---|---|---|
| 1″ | 2.54 | 0′ 1″ |
| 2″ | 5.08 | 0′ 2″ |
| 3″ | 7.62 | 0′ 3″ |
| 4″ | 10.16 | 0′ 4″ |
| 5″ | 12.7 | 0′ 5″ |
| 6″ | 15.24 | 0′ 6″ |
| 7″ | 17.78 | 0′ 7″ |
| 8″ | 20.32 | 0′ 8″ |
| 9″ | 22.86 | 0′ 9″ |
| 10″ | 25.4 | 0′ 10″ |
| 11″ | 27.94 | 0′ 11″ |
| 12″ | 30.48 | 1′ 0″ |
| 13″ | 33.02 | 1′ 1″ |
| 14″ | 35.56 | 1′ 2″ |
| 15″ | 38.1 | 1′ 3″ |
| 16″ | 40.64 | 1′ 4″ |
| 17″ | 43.18 | 1′ 5″ |
| 18″ | 45.72 | 1′ 6″ |
| 19″ | 48.26 | 1′ 7″ |
| 20″ | 50.8 | 1′ 8″ |
| 21″ | 53.34 | 1′ 9″ |
| 22″ | 55.88 | 1′ 10″ |
| 23″ | 58.42 | 1′ 11″ |
| 24″ | 60.96 | 2′ 0″ |
| 25″ | 63.5 | 2′ 1″ |
| 26″ | 66.04 | 2′ 2″ |
| 27″ | 68.58 | 2′ 3″ |
| 28″ | 71.12 | 2′ 4″ |
| 29″ | 73.66 | 2′ 5″ |
| 30″ | 76.2 | 2′ 6″ |
| 31″ | 78.74 | 2′ 7″ |
| 32″ | 81.28 | 2′ 8″ |
| 33″ | 83.82 | 2′ 9″ |
| 34″ | 86.36 | 2′ 10″ |
| 35″ | 88.9 | 2′ 11″ |
| 36″ | 91.44 | 3′ 0″ |
| 37″ | 93.98 | 3′ 1″ |
| 38″ | 96.52 | 3′ 2″ |
| 39″ | 99.06 | 3′ 3″ |
| 40″ | 101.6 | 3′ 4″ |
| 41″ | 104.14 | 3′ 5″ |
| 42″ | 106.68 | 3′ 6″ |
| 43″ | 109.22 | 3′ 7″ |
| 44″ | 111.76 | 3′ 8″ |
| 45″ | 114.3 | 3′ 9″ |
| 46″ | 116.84 | 3′ 10″ |
| 47″ | 119.38 | 3′ 11″ |
| 48″ | 121.92 | 4′ 0″ |
| 49″ | 124.46 | 4′ 1″ |
| 50″ | 127 | 4′ 2″ |
| 51″ | 129.54 | 4′ 3″ |
| 52″ | 132.08 | 4′ 4″ |
| 53″ | 134.62 | 4′ 5″ |
| 54″ | 137.16 | 4′ 6″ |
| 55″ | 139.7 | 4′ 7″ |
| 56″ | 142.24 | 4′ 8″ |
| 57″ | 144.78 | 4′ 9″ |
| 58″ | 147.32 | 4′ 10″ |
| 59″ | 149.86 | 4′ 11″ |
| 60″ | 152.4 | 5′ 0″ |
Common inch measurements in centimeters
Screens and monitors are sold by their diagonal in inches everywhere in the world: a 55″ TV is 139.7 cm corner to corner, a 65″ is 165.1 cm. For a TV wall, also check the case width — a 65″ 16:9 screen is about 144 cm (56.7″) wide.
In the kitchen, a US countertop is 36″ high (91.4 cm) and 25″ deep (63.5 cm); standard base cabinets are 34 1/2″ (87.6 cm) before the top goes on. Interior doors are 80″ tall (203.2 cm).
Related converters & calculators
- CM to Inches ConverterDivide by 2.54, with tape-measure fractions.
- Inches to MM ConverterMultiply by 25.4, with a 1/64″ fraction chart.
- Feet and Inches to CM ConverterType 5'9" and get centimeters.
- Inches to Feet ConverterDivide by 12; decimal feet chart.
- MM to Inches ConverterDivide by 25.4, plus metric-to-SAE socket sizes.
- Feet to Meters ConverterMultiply by 0.3048 (exact).
- Meters to Feet ConverterDivide by 0.3048, shown in feet and inches.
- CM to Feet and Inches ConverterHeight in cm to feet and inches.
Frequently asked questions
How many cm is 12 inches?
12 inches (1 foot) = 30.48 cm exactly.
How do I convert a fraction of an inch to cm?
Turn the fraction into a decimal first (5/8 = 0.625), then multiply by 2.54: 0.625 × 2.54 = 1.5875 cm. The converter above accepts fractions directly.
How many cm is 6 feet?
6 ft = 72 in = 182.88 cm.
What is 1/16 inch in mm?
1/16″ = 1.5875 mm, about as thick as two credit cards.
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