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How can we visually check how many centimeters make an inch?
You can look at a simple ruler with both centimeter and inches scale marked at the opposite sides. Starting from zero, you can check the one-inch mark and the corresponding centimeter value which is around 2.54 cm.
Which unit is commonly used, centimeter or inches in sports?
In sports, both centimeters (cm) and inches are used, but the specific unit depends on the sport and the country. While track and field, tennis, basketball, etc. uses cm, baseball and American football uses inches and yards.
Which one is greater, 1 yard or 100 cm?
One-yard equals 36 inches while 100 cm equals 39.37 inches. So, 100 cm is greater than 1 yard.
What does a 55-inch TV signify?
A 55-inch TV has a screen size with the diagonal measuring 55 inches.
How Many Inches is 20 CM?
How many inches is 20 cm? This question often challenges students when dealing with measurements. Check the detailed solution to this question here and practice similar questions to master conversions.
Shivam Singh23 Aug, 2025
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20 cm to inches: When it comes to length measurements, we often find ourselves switching between units like centimeters (cm) and inches. While centimeters are widely used in most parts of the world, inches are more common in the United States and a few other countries.
To help your child convert 20 cm to inches, we will explain the process of converting centimeters to inches step by step. It helps them utilize the knowledge in practical uses and never get stuck when they need to convert centimeters to inches.
The centimetre and inches both are units of length. Let’s first understand the two units:
Centimetre (cm): A unit of length where 1 cm is equal to one-hundredth part of a meter. It is part of the metric system, which is widely used worldwide.
Inch (in): An imperial unit of length mostly used in the U.S., Canada, and the U.K. One-inch equals 2.54 centimetres.
So, the relationship can be expressed as:
1 inch = 2.54 cm
Or, conversely:
1 cm = 0.3937 inches
How Many Inches is 20 cm?
The formula to convert centimeters to inches is given as:
Inches = Centimetres (cm) ÷2.54
Substituting the value of 20 cm, we get:
Inches = 20 ÷2.54 = 7.874 (approx.)
So, 20 cm = 7.87 inches (rounded to two decimal places).
Students may require a quick reference for conversion of cm to inches. The conversion table below will help remember the values in inches corresponding to cm.
Centimetre to Inches Conversion Table
Centimetres (cm)
Inches (in)
10 cm
3.94 in
15 cm
5.91 in
20 cm
7.87 in
25 cm
9.84 in
30 cm
11.81 in
Why Do We Need to Convert Centimetres to Inches?
Students may wonder why is knowing 20 cm in inches or similar conversions important? Here are a few real-life scenarios where such conversions become useful:
Shopping Online
Many international clothing or accessory sites list dimensions in inches. If you’re used to centimetres, then knowing how many inches is 20 cm helps you order the right size.
Education and Projects
Students often encounter problems where they need to convert between units, especially in math and science. A knowledge of conversion factors helps them find the solutions quickly.
Home Accessories
Measuring furniture, sofas, or decor items sometimes requires measurements in both centimetres to inches, depending on where you buy the products.
Travel
Baggage dimensions can be in either cm or inches, so identifying the correct size becomes easier at airports.
Health and Fitness
Height, waist, or other measurements may use either cm or inches as units depending on the country.
Using Conversion Calculator To Convert Cm to Inches
A conversion calculator is a digital tool that instantly calculates the inches values from the given centimetre values.
If your child is working with large numbers or handling multiple conversions in a single problem, a conversion calculator becomes useful for getting quick answers. You enter the value in cm, and it gives you the corresponding value in inches.
However, encourage your child to learn and apply the manual method of conversions because dependency on such tools hampers the development of analytical skills. Moreover, such calculators are not allowed in exams.
Centimetres to Inches Conversion Solved Examples
Let’s go through the following examples to strengthen the concept of converting centimetres to inches:
As units of length, both centimetres and inches are important parameters. With the knowledge of the conversion factor and precision requirements, your child can easily work out any conversion between centimetres and inches, from small values to larger ones.
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