Official imperial-to-metric conversion tables.

Converts such things as inches to centimetres, gallon to cubic metres or even curie to becquerel

Converts temperature, currency, length, and mass.

Convert units of measurements, bases, and PPT, RTF, DOC, and XLS files to HTML.

More than 40 different unit conversion tables.

Converts area, density, energy, force, length, mass, power, pressure, speed, temperature and volume, bits and bytes.

Java metric conversion calculator for length, weight, pressure, and volume.

Features conversion calculators for atmospheric pressure, volume, distance, weight, velocity, temperature, and force.

Features converters for physical constants, SI units, temperature, currency, and temperature.

Online calculator converts between metric, British, and American units.