Sometimes on a boat or just peering into the distance, you might wonder just how far you are from the horizon or how close things on the horizon really are. Calculating the distance of the horizon is easy once you know the formula. Of course, for most people, the complex calculations will require a calculator. Below the calculations are performed in meters and kilometers giving the straight-line distance to the horizon.
Things You'll Need
- Tape measure
Measure the distance between your eye and the ground beneath your feet. A tape measure or ruler held by another person will garner the most accurate results. Be sure to mark down this distance in feet. This is the height of your vision line above the surface of the planet.
Know that the calculations for the distance to the horizon must include your current elevation above sea level. Add this number to the number in step 1. If you are at sea level, skip step 2.
Input the total of steps 1 and 2 into the calculator and multiply by 1.5. Mark the answer down on a piece of paper.
Clear the calculator, input the answer from step 3, and then hit the square root button. Clearing the calculator ensures a more accurate answer. The square root answer will be in miles.
Understand that you have just used Pythagoras theorem to calculate the distance to the horizon.
How to Calculate Braking Distance
Drivers must pay attention to their surroundings. This includes calculating the braking distance from the cars and objects around a driver. Knowing...
How to Calculate Percentiles
When you take a test and get a score back 87%. It tells you how many questions you got right. But your...
How to Measure Distance on a Treadmill
Calculating the distance traveled during a workout is essential to developing a workout routine, especially when using a treadmill to exercise. Most...
How to Calculate the Volume of a Cylinder
A cylinder is a three-dimensional solid with 2 bases, 2 edges and 3 faces. You measure the volume of a cylinder in...
How to Calculate Compa Ratio
Have you ever wondered how your salary was calculated? You're probably familiar with pay grades and ranges, but did you know there's...
How to Calculate Miles Per Hour for Speed
Calculating speed in miles per hour requires a fundamental set of equations in algebra that are often are used to determine the...
How to Calculate the Schwarzschild Radius
A black hole is a warped region of spacetime with gravity strong enough to overcome the speed of light. It has two...
How to Calculate the Length of a Curved Surface
Curved surfaces are all around. Glasses, car bodies and many buildings have curved surfaces. Because curved surfaces are almost always in style,...