Focused length conversion studio
CM to Inches Converter
Convert centimetres to decimal inches, common inch fractions and feet plus inches. See the exact formula, a live dual-unit scale, nearby values and a batch conversion table.
Exact constants · fractions · batch conversion · visual scaleCentimetres → Inches
One international inch is defined as exactly 2.54 centimetres. Therefore centimetres are converted to inches by dividing by 2.54.
Live length result
Converted measurement
Live conversion ruler
Both rows represent the same physical length. Their labels show why the numeric values change when the unit changes.
—The same length in every unit
Common values
Choose a familiar starting value or enter your own measurement above.
Conversion table
The table updates around useful values for this conversion.
| Starting value (cm) | Converted value (in) |
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Convert several values at once
Enter values separated by commas, semicolons, spaces or new lines. Up to 50 values are processed at once.
| Starting value (cm) | Converted value (in) |
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Exact conversion standard
One international inch is defined as exactly 2.54 centimetres. Therefore centimetres are converted to inches by dividing by 2.54.
Where this conversion is useful
Centimetre-to-inch conversion is common for furniture dimensions, sewing patterns, product specifications, screen sizes, crafts and measurements shared between metric and US customary systems.
Decimal and fractional inches
Decimal inches are best for calculations, while rulers, woodworking and construction often use fractions. The calculator shows the nearest common fraction without changing the high-precision decimal result.
Precision and rounding
The calculator retains full floating-point precision during calculations. Choose more displayed decimal places for technical work and fewer for everyday measurements. Do not imply more accuracy than the original measurement provides.
Zero is a valid length and converts to zero in every unit.
Batch conversion for lists and specifications
Paste a short list of dimensions to create a clean two-column result table. This is useful for product specifications, plans, training logs and travel notes.
Quick length conversions
Continue with the reverse direction, another common unit pair or the full Length Converter.
CM to Inches Converter – Frequently asked questions
How do I convert centimetres to inches?
Divide the centimetre value by 2.54. For example, 10 cm divided by 2.54 equals approximately 3.937 inches.
How many inches are in one centimetre?
One centimetre equals approximately 0.3937007874 inches.
Is 2.54 cm exactly one inch?
Yes. Since 1959, the international inch has been defined as exactly 2.54 centimetres.
What is 10 cm as an inch fraction?
Ten centimetres is approximately 3.937 inches, which rounds to 3 15/16 inches at the nearest sixteenth.
Can I convert several centimetre values together?
Yes. Enter up to 50 values in the batch converter to receive a two-column centimetre-to-inch table.
Why can the fractional result differ from the decimal?
The fraction is rounded to the selected denominator, while the decimal result retains more displayed precision.
Can I use a comma as the decimal separator?
Yes. The converter accepts either a comma or a period as the decimal separator.
Where can I convert other length units?
Use the full Length Converter for millimetres, metres, feet, yards, kilometres, miles and additional units.