![]() ![]() This instantaneous speed changes throughout the course of your trip. That data is then multiplied and extracted to give you your instantaneous speed reading. The instantaneous speed reading you get from this site is calculated in a similar way, but instead of over the course of an hour, your GPS determines how far you’ve traveled in one second. This doesn’t mean you traveled at precisely this pace for the entire time, but this is your average speed. This equals an average pace of 6.667 miles per hour. Let’s say you go there on a Friday night during rush hour and it takes you an hour and a half (1.5 hours). Then you’d need the time it takes to get to that restaurant. If you were to calculate your speed after the fact you could determine the distance you traveled (for example, the distance between your house and your favorite restaurants). This site allows you to choose between miles per hour, kilometers per hour and knots (nautical miles). Units include kilometers per house, miles per hour, meters per second and feet per second. To generate a calculation for the average speed, you’d divide total time by total distance. What we refer to as speed is determined by a calculation of distance and time. Laptops and Desktop computers don't typically have GPS installed like a phone would, but you can still access this site without a phone. Unlike a vehicle with a built in speedometer that depends on physical components in motion, calculating speed using the GPS in your phone can be achieved on foot, in a car, on a bicycle or any other mode of transportation you can think of. GPS coordinates are calculated by a simple mathematical equation that computes the time between when a signal is sent and when it is received. The satellites emit signals to receivers. Using a global network of satellites that transmit radio signals in medium earth orbit, GPS provides positioning and navigation coordinates. ![]() ![]() GPS is an acronym for Global Positioning System. Because smartphones use GPS data for a plethora of functions they are perfectly suited to be speedometers. Using the GPS that's built into your iPhone or Android, "How fast am I going?" swiftly analyzes the changes in your location and calculates your approximate speed with a simple computation derived from dividing distance traveled by a unit of time. Thanks to modern technology this site doesn't need to use magnets or gears to give an extremely accurate instantaneous speed reading. The motion of the gear interrupts the magnetic field on the sensor, which produces a reading that is interpreted by a computer chip and displays as an instantaneous speed on your vehicle. When the car is in motion, the gear spins. This acts as a sensor which is placed in proximity to a gear on the transmission. In a typical car the speedometer works using magnets encased in a wire coil (much like an electric guitar pickup). So your instantaneous speed can change from moment to moment. Travelling at a consistent pace is nearly impossible as many variables such as traffic, weather, stop signs, traffic lights and a host of other factors create an ebb and flow in your speed. So when you get an instantaneous speedometer reading, for example 60 miles an hour, you are being told how many miles you would travel if you continued at the same speed consistently for one hour. What is instantaneous speed? It is the speed of an object at a particular moment in time. How Does a Speedometer Work?Ī speedometer is a device that measures the 'instantaneous' speed of a vehicle. It's easier, faster and more convenient than other sites and apps. Think of this site as a mobile web-based speedometer. Unlike other sites which are focused on calculating speed by inputting data manually, this site uses GPS data from your mobile device to automatically determine your speed. The purpose of this site is to provide a fast, easy and convenient way to determine how fast you are traveling at any given moment. ![]()
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