Length converter
Convert metric units, miles, inches, feet, nautical miles, light-years, astronomical units, etc.
Speed converter
Convert meters per second, kilometers per hour, miles per hour, minutes per kilometer, seconds per mile, knots, speed of light, Mach, etc.
Volume converter
Convert litres, cubic meters, oil barrels, pints, teaspoons, fluid ounces, gallons (imperial or u.s. liquid), etc.