Distance Formula

Speed*time= distance for example

2 mph*2 hours= 2 miles

If you're referring to the distance between two points  (x1 , y1)  and (x2 , y2).........we have

√ [ ( x2 - x1)^2  + ( y2  - y1)^2  ]

What is the distance formula?

There is a formula for the distance to the horizon:

3.572 X sqrt(H), where H is your height in meters. Example: what is the distance to the horizon if you are standing on a platform 100 meters high: 3.572 X sqrt(100)=35.72 Kilometers.