Math Definitions - Letter K


Definition of km/h

Definition of km/h

km/h is an abbreviation of "kilometres per hour". It is a metric unit used to measure speed.

In Australia, we measure speeds and state speed limits in km/h. The sign shows a speed limit of 40 km/h. This speed limit is commonly used around schools and other areas with a large amount of pedestrian activity. Other common speed limits include 100 km/h on highways, 110 km/h on freeways, and 60 km/h in built-up areas.

If your grandparents or an American friend start talking about speeds in miles per hour, you'll be able to translate these into km/h if you remember that 1 mile per hour is approximately 1.6 km/h.


The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.


Year 1 to Year 12 students

Learning Objectives

Learn common math terms starting with letter K

Author: Subject Coach
Added on: 6th Feb 2018

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