Cm to Inches Converter
Convert centimetres to inches instantly. 1 cm = 0.393701 in, with a full table for millimetres, feet, metres and yards.
1 Centimetre (cm) =
0.393701 in
Inch (in)
Millimetre (mm)10
Metre (m)0.01
Kilometre (km)0.00001
Foot (ft)0.032808
Yard (yd)0.010936
Mile (mi)0.000006214
Nautical mile0.0000054
All other units in this category are shown above for the same input value.
About the Cm to Inches Converter
Type a length in centimetres to see it in inches straight away. The panel underneath repeats the same measurement in millimetres, feet, metres and yards, which is useful when a spec sheet mixes units.
Formula
An inch is defined as exactly 2.54 centimetres, so dividing the centimetre figure by 2.54 gives inches. Multiplying by 0.3937007874 does the same thing. Because the inch is defined in terms of the metre, this conversion is exact rather than approximate.
Cm to Inches conversion table
| Centimetre (cm) | Inch (in) | Feet and inches |
|---|---|---|
| 1 | 0.3937 | — |
| 2 | 0.7874 | — |
| 3 | 1.1811 | — |
| 4 | 1.5748 | — |
| 5 | 1.9685 | — |
| 6 | 2.3622 | — |
| 7 | 2.7559 | — |
| 8 | 3.1496 | — |
| 9 | 3.5433 | — |
| 10 | 3.937 | — |
| 15 | 5.9055 | — |
| 20 | 7.874 | — |
| 25 | 9.8425 | — |
| 30 | 11.811 | — |
| 40 | 15.748 | 1′ 3.7″ |
| 50 | 19.685 | 1′ 7.7″ |
| 60 | 23.622 | 1′ 11.6″ |
| 70 | 27.5591 | 2′ 3.6″ |
| 80 | 31.4961 | 2′ 7.5″ |
| 90 | 35.4331 | 2′ 11.4″ |
| 100 | 39.3701 | 3′ 3.4″ |
| 150 | 59.0551 | 4′ 11.1″ |
| 155 | 61.0236 | 5′ 1″ |
| 160 | 62.9921 | 5′ 3″ |
| 165 | 64.9606 | 5′ 5″ |
| 170 | 66.9291 | 5′ 6.9″ |
| 175 | 68.8976 | 5′ 8.9″ |
| 180 | 70.8661 | 5′ 10.9″ |
| 185 | 72.8346 | 6′ 0.8″ |
| 190 | 74.8031 | 6′ 2.8″ |
| 195 | 76.7717 | 6′ 4.8″ |
| 200 | 78.7402 | 6′ 6.7″ |
| 250 | 98.4252 | 8′ 2.4″ |
| 500 | 196.8504 | 16′ 4.9″ |
| 1,000 | 393.7008 | 32′ 9.7″ |
Frequently Asked Questions
0.3937 inches, a little over three eighths of an inch. Ten centimetres is 3.937 inches, just under four.
Divide by 2.5 for a rough answer, which overestimates by about 1.6 percent. For 30 cm that gives 12 inches against a true 11.81.
The 1959 international yard and pound agreement defined the yard as exactly 0.9144 metres, which makes the inch exactly 2.54 cm. Before that, the US and imperial inches differed very slightly.
Divide the inches by 12 to get the feet, and the remainder is the inches. 70 inches is 5 feet 10 inches.
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