A taxi meter is a device used in taxis to calculate the fare based on distance traveled and time taken. It automatically tracks the journey, providing an accurate cost for passengers. The meter typically displays the fare in real-time, allowing riders to see how much they owe as the trip progresses. Taxi meters are usually found in vehicles operated by professional drivers, such as those affiliated with ride-hailing services like Uber or traditional taxi companies. They help ensure fair pricing and transparency in the transportation industry, making it easier for passengers to understand their charges.