To determine your speed, there are several online speedometer tools available that use GPS technology to measure your speed and heading in real-time. These tools can be accessed through a website or mobile app and require GPS permission to function accurately. To use an online speedometer, you need to open the tool on your smartphone or other digital device, make sure it is set to the correct mode for your activity, and start moving. The tool should display your current speed in real-time, typically in either miles per hour (mph) or kilometers per hour (km/h) . Alternatively, you can also check your speed using the speedometer feature in Google Maps, which shows you how fast youre driving on the road. However, it is important to note that speedometers shown in the Google Maps app are for informational use only, and you should always use your vehicles speedometer to confirm your actual driving speed.