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Get in touch with us  # Convert Metric Units of Length

## What is length?

Length is the term used for identifying the size of an object or distance from one endpoint to another end object.

OR

Length is a measure of how long an object is or the distance between two points.

Metric Unit of Length: In the metric system, the basic unit of length is meter.

Vocabulary:

The most common metric units of length are:

• Kilometer
• Meter
• Centimeter
• Millimeter

Note: – All of the other metric units of length are defined in terms of the meter.

### Let us understand the metric units of length, what they are in actual.

#### Kilometer

Kilometer is the biggest metric unit of measurement.

The abbreviation for kilometer is ‘km’

1 kilometer is equal to 1000 meter

1 kilometer length is the same which is about 2 ½ times around the track.

#### Meter

It is the base unit of measurement.

The abbreviation for meter is ‘m’

1 meter length is the same as the length of a guitar, the height of a chair.

#### Centimeter

The abbreviation for centimeter is ‘cm’.

1 clength is same like length of an ant, the length of a dice.

#### Millimeter

The abbreviation for millimeter is ‘mm’.

1 millimeter length is the same like the thickness of a paper.

We can also understand 1 mm by thickness of a dot.

### Distance of Metric Units of Length (Approximate)

1. 1 kilometer length is the same that is about 2 ½ times around the track.
1. 1 meter length is the same as the length of a guitar, the height of a chair.
1. 1 centimeter length is the same as the length of an ant, the length of a dice
1. 1 mm by thickness of a dot.

### Conversion between the metric units

To convert larger unit to a smaller unit, we need to multiply.

To convert a smaller unit to a larger unit, we need to divide.

1. 7 m  = _____ cm.

2. 6600 cm = _____m.

3. 37 m = _____cm.

4. 66 cm = ____mm.

5. 5 ½ km = ___m.

Solution:

1. 1 m = 100 cm
So, 7 m = 7 × 100 = 700 cm

2. 1 m = 100 cm  or  100 cm = 1m
So, 1 cm = 1 ÷ 100 m Now, for 6600 cm = 6600 ÷ 100 m = 66 m

3. 1 m  = 100 cm
Now,  37 m = 37 × 100 = 3700 cm

4. 1 cm= 10 mm

66 cm = 66 × 10 = 660 mm

5. Since 1 km = 1000m

So, 5 ½ km = 5 ½ × 1000 m

= 5 ×  1000 + ½ ×  1000

= 5500 m

### Examples

Example 1: Five books of height 7 cm 5 mm each are stacked over one another. What is the total height so obtained?

Solution:

Height of one book = 7 cm 5 mm

So, the total height obtained for such 5 books = (7cm 5 mm) × 5

= 35 cm 25 mm    (But 10 mm = 1 cm)

= (35 cm  + 2 cm) and 5 mm

= 37 cm 5 mm

Example 2: Mr. John bought a cloth of length 3890 cm. How much is the length in m and cm?

Solution:

Since, 1 m = 100 cm   or 100 cm = 1 m

So, 1 cm = 1/100 m

Now, 3890 cm = 3890 ÷ 100

= 38 m 9 cm

### What have we learned

• Identify metric units of length.
• Use multiplication and division to determine metric units equivalencies
• Perform arithmetic calculations on metric units of length.
• Solve application problems involving units of length.

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