ConverTable Planets is designed to answer that age-old question, "if a widget weighs 34 stones on Earth, just how many troy ounces would that widget weigh on Mars?" In doing so, ConverTable Planets could be used to teach about unit conversions and gravity. ConverTable Planets can also compare the lengths of years on various planets, and visually compares the sizes of many planets and moons.
What's new in ConverTable Planets
update for OS X 10.9 Mavericks compatibility
plays nicer with OS X 10.7 Lion and OS X 10.8 Mountain Lion too