Have you ever wondered how we can pinpoint any location on a map with total accuracy? Long before GPS, this invisible grid was the foundation of the Age of Exploration, allowing sailors to navigate uncharted oceans and map the world with precision. This concept is called Latitude and Longitude.

 

 

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Latitude and Longitude are used to determine the position on ANY place on the Earth’s surface. Latitude measures how far north or south a place is from the Equator, while longitude measures how far east or west it is from the Prime Meridian.

 

Latitude:

Lines of latitude, also known as parallels, are the horizontal lines that circle the Earth from east to west. The starting point for measuring latitude is the Equator, which is marked as 0° and divides the Earth into the Northern and Southern Hemispheres. This system is used to measure how far north or south a location is from the center of the Earth, with the numbers increasing as you move toward the poles. Latitude reaches its maximum at 90° North or 90° South. Latitude locations are given as __ ° N (North) or __ ° S (South).

 

Longitude:
Vertical mapping lines on Earth are called lines of longitude, or meridians. Unlike latitude lines, these run north to south and meet at both the North and South Poles. The starting point for this system is the Prime Meridian 0°, an imaginary line that runs through Greenwich, England, dividing the Earth into the Eastern and Western Hemispheres. Longitude measures how far east or west a location is from this center line. Longitude locations are given as __ ° E (East) or __ ° W (West).

 

Now putting these two concepts together, we create a coordinate! To keep things organized, the world follows one standard rule: Latitude is always written FIRST, followed by Longitude.

 

Example: 40° N, -105° W

 

Here’s what some coordinates look like