Kilometer
Definition of Kilometer

• Kilometer is the unit of Length in the metric system.

More about Kilometer

• 1 Kilometer = 1,000 meters
• 1 Kilometer = about 0.62 miles

Examples of Kilometer

• Sandra drove for an Hour and covered 33 kilometers.
• The Circumference of the Earth is about 4 × 10⁴ kilometers.

Solved Example on Kilometer

A supersonic jet Plane travels at a Rate of 4,000 kilometers per Hour for 30 minutes. Find the Distance traveled.
Choices:
A. 2,500 kilometers
B. 4,030 kilometers
C. 1,500 kilometers
D. 2,000 kilometers
Correct Answer: D
Solution:
Step 1:  Distance traveled d = rt . [Distance = Rate × time.]
Step 2:  r = 4000 kilometers per hour.
Step 3:  t = 30 minutes = hours = 0.5 hours. [60 minutes make one hour]
Step 4:  Distance traveled, d = 4,000 × 0.5 = 2000 kilometers.
Step 5:  So, the jet Plane traveled 2,000 kilometers Distance in 30 minutes.

• Metric Unit

Real-world Connections for Kilometer

• Kilometer is the standard Unit of Measurement of Distance and speed in many countries.
• The Kilometer is a standard Unit of Measurement commonly used in fiber optics.

Additional Links for Kilometer

• Click here for samples
• Back to Mathematics Dictionary