Centimetres to Inches Chart
Every centimetre from 1 to 30, in inches.
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Conversion table
| From | To |
|---|
Every centimetre from one to thirty, in inches. One centimetre is 0.3937 inches, which unlike the reverse does not come out round: the inch is defined in terms of the centimetre and not the other way about, so this direction is the one that carries the recurring decimal.
Thirty rows because thirty centimetres is just under a foot, which is the range a ruler covers and most of what a person measures at a desk. Change Rows to go further, or Step to 5 for a coarser chart that fits a longer span on the same sheet.
For the table the other way up, with inches down the left, see the inches to centimetres chart.
How to use it
- Read the table, which is built for this pair of units when the page opens.
- Change Start, Step or Rows to cover a different range.
- Press Print for the table on its own, without the rest of the page.
Questions
How many inches is one cm?
0.3937 inches, to four places. The exact value is 1 divided by 2.54, which does not terminate, so any figure you see is rounded somewhere. Going the other way is exact, because the inch is defined as 25.4 millimetres.
Why does this chart go to 30 and the inch one to 24?
Because each stops at the length of the ruler it belongs to. Thirty centimetres is just under a foot and is where a metric ruler ends; twenty-four inches is two feet, which is a tape measure's first useful span. Both are only defaults, and the row count changes the moment you type in it.
How do I read a fraction of an inch from this?
The results are decimal, so 0.5 is a half and 0.25 a quarter. For the sixteenths a tape measure is marked in, multiply the decimal part by sixteen: 0.7874 inches is about thirteen sixteenths. The chart does not print fractions because the arithmetic behind it is decimal throughout.
Can I change the range of the chart?
Yes. Start is the first value in the left column, Step is the gap between rows, and Rows is how many there are, up to two hundred. All three update the table as you type, and the unit menus above them will convert any other pair in the same category.
Is the table built on my device?
Yes, by WebAssembly compiled from Rust, using conversion factors that are compiled in rather than fetched. Nothing is uploaded, nothing is stored, and the page prints the same table with the network off.
Centimetres to inches, 1 to 30
The chart above as a plain table, with the nearest sixteenth of an inch beside the decimal, because that is how a tape measure is marked.
| Centimetres | Inches | Nearest 1/16 inch |
|---|---|---|
| 1 cm | 0.3937 in | 3/8 in |
| 2 cm | 0.7874 in | 13/16 in |
| 3 cm | 1.1811 in | 1 3/16 in |
| 4 cm | 1.5748 in | 1 9/16 in |
| 5 cm | 1.9685 in | 1 15/16 in |
| 6 cm | 2.3622 in | 2 3/8 in |
| 7 cm | 2.7559 in | 2 3/4 in |
| 8 cm | 3.1496 in | 3 1/8 in |
| 9 cm | 3.5433 in | 3 9/16 in |
| 10 cm | 3.9370 in | 3 15/16 in |
| 11 cm | 4.3307 in | 4 5/16 in |
| 12 cm | 4.7244 in | 4 3/4 in |
| 13 cm | 5.1181 in | 5 1/8 in |
| 14 cm | 5.5118 in | 5 1/2 in |
| 15 cm | 5.9055 in | 5 7/8 in |
| 16 cm | 6.2992 in | 6 5/16 in |
| 17 cm | 6.6929 in | 6 11/16 in |
| 18 cm | 7.0866 in | 7 1/16 in |
| 19 cm | 7.4803 in | 7 1/2 in |
| 20 cm | 7.8740 in | 7 7/8 in |
| 21 cm | 8.2677 in | 8 1/4 in |
| 22 cm | 8.6614 in | 8 11/16 in |
| 23 cm | 9.0551 in | 9 1/16 in |
| 24 cm | 9.4488 in | 9 7/16 in |
| 25 cm | 9.8425 in | 9 13/16 in |
| 26 cm | 10.2362 in | 10 1/4 in |
| 27 cm | 10.6299 in | 10 5/8 in |
| 28 cm | 11.0236 in | 11 in |
| 29 cm | 11.4173 in | 11 7/16 in |
| 30 cm | 11.8110 in | 11 13/16 in |
Heights in centimetres, in feet and inches
The conversion most people want centimetres in inches for. A height is written in feet and inches, so the inches are split into twelves: 180 cm is 70.9 inches, which is 5 feet and 10.9 inches.
| Height | Feet and inches |
|---|---|
| 150 cm | 4 ft 11.1 in |
| 155 cm | 5 ft 1.0 in |
| 160 cm | 5 ft 3.0 in |
| 165 cm | 5 ft 5.0 in |
| 170 cm | 5 ft 6.9 in |
| 175 cm | 5 ft 8.9 in |
| 180 cm | 5 ft 10.9 in |
| 185 cm | 6 ft 0.8 in |
| 190 cm | 6 ft 2.8 in |
| 195 cm | 6 ft 4.8 in |
| 200 cm | 6 ft 6.7 in |
Common metric sizes in inches
| Thing | Metric | Inches |
|---|---|---|
| A4 paper | 21 × 29.7 cm | 8.27 × 11.69 in |
| A5 paper | 14.8 × 21 cm | 5.83 × 8.27 in |
| A3 paper | 29.7 × 42 cm | 11.69 × 16.54 in |
| Bank card (ISO ID-1) | 8.56 × 5.398 cm | 3.370 × 2.125 in |
| School ruler | 30 cm | 11.81 in |
| One metre | 100 cm | 39.37 in |
Other charts
The same table for a different pair of units. The range on any of them is yours to change.
- Inches to Centimetres Chart
- Kilograms to Pounds Chart
- Celsius to Fahrenheit Chart
- Oven Temperature Conversion Chart
Your data stays on your device
Everything above runs inside your browser as WebAssembly compiled from Rust. Nothing you type is uploaded, logged or stored on a server. You can load this page once, go offline, and it still works.
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