Centimetres to Inches Converter

Convert centimetres to inches with our free Canadian-friendly online tool. Perfect for construction, lumber, and hardware sizes still sold in inches across Canada.

Canadian Metric & Imperial Length Converter

1 cm = 0.3937007874 in

The quick answer for 1 Centimeters — type any value below for the exact result

Enter Centimetres

Centimeters

Result in Inches

Inches

cm to in Conversion Formula

To convert centimetres to inches, divide the centimeter value by 2.54. This is because one inch is defined as exactly 2.54 centimetres.

1 cm = 0.3937007874 in

Centimeters and Inches Explained

Centimeters (cm)

The centimeter is a metric unit of length equal to one hundredth of a meter — 0.393701 inches. It is the everyday measuring unit for objects that fit in your hands: notebook paper (21 cm wide), credit cards (8.56 cm), waistlines, and school rulers. Most of the world learns to estimate in centimeters from childhood, and medical growth charts, sewing patterns, and furniture catalogs outside the US all speak in centimeters.

Where it is used: Standard for body measurements, tailoring, school geometry, and product dimensions across the metric world.

Origin: Defined within the original 1795 French metric system using the Latin prefix "centi" (hundred); its symbol cm was confirmed in the 1960 SI standardization.

Inches (in)

The inch is a US customary and imperial unit of length equal to exactly 2.54 centimeters, or one twelfth of a foot. In the United States it dominates product labeling — screen diagonals, pizza sizes, pipe threads, and wrench openings are all inches. It divides cleanly into halves, quarters, and eighths for workshop work, and in casual speech anything from a person's height to a steak's thickness gets quoted in inches rather than decimal feet.

Where it is used: Default in US manufacturing, retail sizing, and carpentry; common in UK and Canadian trades alongside metric units.

Origin: Descended from the Roman "uncia" (one twelfth of a foot) and long tied to barleycorn and thumb-width definitions before being fixed at exactly 2.54 cm in 1959.

Centimetres to Inches Conversion Table

Centimeters (cm)	Inches (in)
0.5 cm	0.1968503937 in
1 cm	0.3937007874 in
2 cm	0.7874015748 in
5 cm	1.968503937 in
10 cm	3.937007874 in
15 cm	5.905511811 in
20 cm	7.874015748 in
25 cm	9.842519685 in
30 cm	11.811023622 in
40 cm	15.7480314961 in
50 cm	19.6850393701 in
60 cm	23.6220472441 in
80 cm	31.4960629921 in
100 cm	39.3700787402 in
150 cm	59.0551181102 in
180 cm	70.8661417323 in
200 cm	78.7401574803 in

Inches to Centimeters Conversion Table

Inches (in)	Centimeters (cm)
0.5 in	1.27 cm
1 in	2.54 cm
2 in	5.08 cm
3 in	7.62 cm
4 in	10.16 cm
5 in	12.7 cm
6 in	15.24 cm
8 in	20.32 cm
10 in	25.4 cm
12 in	30.48 cm
16 in	40.64 cm
18 in	45.72 cm
24 in	60.96 cm
36 in	91.44 cm

Centimeters to Inches in Everyday Objects

Common real-world examples that make Centimeters and Inches easy to picture at a glance.

	Centimeters (cm)	Inches (in)
A standard pencil	19 cm	7.4803149606 in
A credit card width	8.56 cm	3.3700787402 in
A US dollar bill length	15.6 cm	6.1417322835 in
A DVD disc diameter	12 cm	4.7244094488 in
A4 paper width	21 cm	8.2677165354 in
A basketball rim diameter	45.72 cm	18 in

When You Need Centimeters to Inches Conversions

Buying Clothes from US Stores

European sizing quotes sleeve length as 65 cm, but the American product page says 25.5 in. Converting 65 cm to 25.591 in confirms the shirt matches before ordering.

Ordering Photo Prints Abroad

A German lab lists prints in centimeters while the frame you own is a US 8x10. Converting 20 cm to 7.874 in shows the 20x25 cm print will need a trim before framing.

Installing Drawer Slides

Cabinet plans from a Swedish designer specify 35 cm slides; the hardware store stocks 12 in, 14 in, and 16 in. Converting 35 cm to 13.78 in picks the 14 in slide.

Reading Pediatric Growth Charts

A clinic abroad records a child at 92 cm tall. The US-parent growth app charts in inches — converting 92 cm to 36.22 in places the child on the right percentile curve.

Related Length Conversions

Imperial to Metric Converter: Inches to Centimetres

Inches → Centimeters

Metres to Feet Converter | Canada's Measurement Tool

Meters → Feet

Feet to Metres Converter for Canadians

Feet → Meters

Kilometres to Miles Converter (km to mi)

Kilometers → Miles

Miles to Kilometres Converter — Cross-Border Distance Tool

Miles → Kilometers

Millimetres to Inches Converter for Canadian Workshops & Job Sites

Millimeters → Inches

Yards to Metres Converter — Canada's Free Yardage Tool

Yards → Meters

Meters to Yards Converter – Fast & Accurate Canadian Tool

Meters → Yards

Feet to Inches Converter — Free ft to in Calculator for Canada

Feet → Inches

Convert Kilometres to Metres — Free Online Tool

Kilometers → Meters

Metres to Kilometres Converter — Instant m to km Tool

Meters → Kilometers

Nautical Miles to Kilometres Converter for Canadian Boaters & Pilots

Nautical Miles → Kilometers

Micrometres to Millimetres Converter — Free um to mm Tool for Canadian Workshops & Labs

Micrometers → Millimeters

Free dm to cm Converter — Decimetres to Centimetres for Canada

Decimeters → Centimeters

How to Use

1

Enter Your Measurement

Type the centimeter value you want to convert — for example, type 30 for a 30 cm ruler measurement
2

See the Result

The equivalent in inches appears instantly. 30 cm converts to 11.811 inches automatically
3

Copy or Swap

Copy the result to your clipboard, or click Swap to convert from inches back to centimetres
4

Use the Conversion Table

Check the table below for common values like 15 cm = 5.906 in or 60 cm = 23.622 in

Why Use Be Converter?

Instant Results

Get precise centimeter to inch conversions in real-time as you type — no waiting, no page reloads

Pinpoint Accuracy

Uses the international standard of 2.54 cm per inch, adopted worldwide since 1959, for results you can trust

Quick Reference Table

Handy conversion table with common cm values — ideal for screen sizes, photo prints, and woodworking

Swap Instantly

Switch from cm to in or in to cm with one click — perfect when you need conversions in both directions

Free Forever

No signup, no limits. Use this converter as often as you need for school, work, or everyday measurements

100% Private

All calculations run in your browser. No data is ever sent to a server — your measurements stay yours

Frequently Asked Questions

How many inches are in 1 centimeter?

1 centimeter equals 0.393701 inches. This is derived from the international standard definition where 1 inch equals exactly 2.54 centimetres, so 1 cm = 1 ÷ 2.54 = 0.393701 in.

How do I convert centimetres to inches manually?

Divide the centimeter value by 2.54. For example, a 55 cm TV screen is 55 ÷ 2.54 = 21.65 inches. A quick mental trick: divide cm by 2.5 for a close estimate.

What is 10 cm in inches?

10 centimetres equals 3.93701 inches. This is a common measurement in photography — a 10 cm print is just under 4 inches wide.

Why is 2.54 used to convert cm to inches?

In 1959, the international yard and pound agreement defined 1 inch as exactly 2.54 centimetres. This standardized the conversion worldwide, replacing slightly different values used by the US and British Commonwealth.

How do I convert screen size from cm to inches?

Divide the diagonal measurement in cm by 2.54. For example, a laptop with a 39.6 cm diagonal screen is 39.6 ÷ 2.54 = 15.6 inches. Monitor sizes are traditionally measured in inches.

What is 180 cm in inches (human height)?

180 cm equals 70.866 inches, which is 5 feet 10.9 inches — a common reference height on US medical forms. Since 1 cm = 0.393701 in, multiply any height in cm by 0.393701 to get total inches.

How many inches is 5 cm?

5 cm equals 1.9685 inches — almost exactly 2 inches (5.08 cm). This is handy for small hardware: a 5 cm drawer pull is sold in the US as a 2-inch (50.8 mm) pull.

How do I convert inches back to centimeters?

Multiply the inch value by 2.54. For example, 12 in = 30.48 cm, and a 6.5 in smartphone is 16.51 cm. Because 2.54 is exact, converting back and forth never accumulates rounding error.

About Centimetres to Inches Converter

Our free online centimetres to inches converter provides instant, accurate conversions for any measurement. Whether you are buying a TV, measuring fabric for a sewing project, working on a woodworking plan from an international source, or checking photo print dimensions, this tool delivers reliable results. The centimeter is part of the metric system used worldwide, while inches remain the standard in the United States, making this conversion essential for international trade, travel, and collaboration.

Expert Tips for cm to in Conversion

Remember that 2.54 cm equals exactly 1 inch — this has been the international standard since the 1959 yard and pound agreement between the US, UK, Canada, Australia, and South Africa.

For a quick estimate without a calculator, divide cm by 2.5 — this gives a result within 2% accuracy, which is good enough for most everyday situations.

When buying a TV or monitor, know that screen sizes are always measured diagonally in inches. A 27-inch monitor has a diagonal of 68.58 cm.

In woodworking and construction, 4 inches equals 10.16 cm and 8 inches equals 20.32 cm. Memorizing a few reference points speeds up your workflow.

Photo print sizes in the US use inches (4x6, 5x7, 8x10) while most of the world uses centimetres. A standard 4x6 inch print is approximately 10x15 cm.