Warp Speed Calculator is a bit like most widgets out there: it doesn't really serve any purpose but it's fun to use. This widget basically allows you to calculate space travels at warp speed. By adjusting settings like TNG factor, speed, days or distance you can answer such essential questions like, "how much time would it take for my spaceship to travel to Mars and back at warp 4?".
The widget will probably amuse sci-fi and Star Trek fans for a few minutes, however don't expect to use it if your looking for precise calculations in space travel. After all, Warp Speed Calculator is essentially a little piece of fun, perfect if you have five minutes to waste.