Question 1

How do I calculate speed from distance and time?

Accepted Answer

Speed equals distance divided by time (v = d/t). Enter any two values and the calculator solves for the third. For example, 100 km in 2 hours = 50 km/h.

Question 2

What speed units are supported?

Accepted Answer

Kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), feet per second (ft/s), and knots (nautical miles per hour). Results are shown in all units simultaneously.

Question 3

How do I convert between mph and km/h?

Accepted Answer

Multiply mph by 1.60934 to get km/h, or divide km/h by 1.60934 to get mph. For quick estimates: mph x 1.6 = km/h. The calculator handles all conversions automatically.

Question 4

What are knots used for?

Accepted Answer

Knots (nautical miles per hour) are the standard speed unit in aviation and maritime navigation. One knot equals 1.852 km/h or 1.151 mph. Knots are based on nautical miles, which relate to degrees of latitude.

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