Time Speed Distance Calculator is a free utility tool designed for iPhone users. This application allows users to input any two values among time, speed, or distance, and it will automatically calculate the third value. The calculator offers the flexibility to change units for different measurements, including distance (meters, feet, yards, kilometers, miles, nautical miles), speed (km/h, miles/h, meters per second, feet per second, knots), and time (hh:mm:ss, hh:mm:ss.SSS).

Users can effortlessly perform various time, speed, and distance calculations with this versatile tool, making it a handy utility for quick and accurate computations on the go.