 # Centimeters conversion chart – how to convert 25 inches in cm?

## How many centimeters? Measurement introduction

The metric system is a system of measurement used in many countries around the world. It is based on the International System of Units (SI). The basic units of length are meters (m), centimeters (cm), and millimeters (mm). One meter is equal to 100 centimeters (cm) and 1000 millimeters. Meters describe large distances such as the length of a field or the height of a building. Centimeters are used for measuring smaller objects like books or pieces of furniture. Millimeters are even smaller and used for very small objects such as screws or coins.

When using the metric system, it is important to remember that one meter is equal to 100 centimeters (cm) and 1000 millimeters. This makes it easy to convert between different measurements when necessary. For example, if you need to measure something that requires centimeters but all you have is a m ruler, you can easily divide by 100 and get your answer in centimeters. Similarly, if you need to measure something in millimeters but all you have is a centimeter ruler, you can multiply by 10 and get your answer in millimeters.

## How many inches? British imperial values

The inch is a unit of length in the British imperial and United States customary systems of measurement. It is equal to 1/36 yard or 1/12 of a foot. The international symbol for inch is “in”. Inches are commonly used to measure small distances, such as the thickness of paper, the diameter of a penny, and the width of shoelaces. The inch is also used to measure larger objects such as television screens, bookshelves, and automobiles. When using inches to measure larger objects, it is important to remember that one inch equals 0.0254 meters or 25.4 millimeters. Therefore if an object measures 10 inches wide in one system of measurement, it will be 254 millimeters wide in another system. Knowing how many inches are equivalent to other units can help you accurately measure things quickly and easily without having to convert from one system of measurements to another every time you need an answer.

## Simple conversions – how many cm?

Let’s make units conversions using below basic values:

1 inch = 2.54 centimeters

1 foot = 12 inches = 30.48 centimeters

1 yard = 3 feet = 91.44 centimeters

1 mile = 1760 yards = 1,609,344 centimeters

1 millimeter = 0.1 centimeters

1 centimeter = 10 millimeters

1 meter = 100 centimeters

1 centimeter = 0.393701 inches

## Decimal fraction conversion chart

It’s worth to know that basic conversions without using calculator:

0.1= 1/10

0.2= 2/10

0.3= 3/10

0.4= 4/10

0.5= 5/10

0.6= 6/10

0.7= 7/10

0.8= 8/10

0.9= 9/10

1 inch = 2.54 cm

1 foot = 30.48 cm

1 yard = 91.44 cm

1 mile = 160934 cm

## Centimeters conversion chart

Some values we can easily calculate when we know base unit:

1cm is equal to 0.3937 inches

This implicates logic for multiplied centimeter (cm) unit:

2cm = 0.7874 inches

3cm = 1.1811 inches

4cm = 1.5748 inches

5cm = 1.9685 inches

6cm = 2.3622 inches

7cm = 2.7559 inches

8cm = 3.1496 inches

9cm = 3.5433 inches

10cm = 3.9370 inches