This handy and free utility quickly converts almost every unit of measurement under the sun into other units. Quad-Lock Unit Converter is not just small, but it's also time-efficient, as no installation is required other than clicking on the EXE file. When determining conversions, you first select from a long list of subjects, including ones for area, charge, temperature, mass, density, and thermal conductance. If you don't regularly work with, say, viscosity, you can remove it from the main window. You then choose your source and desired units, such as feet to centimeters. After that, you simply type in a specific number, and this application will convert it to your desired unit in mere seconds. Quad-Lock Unit Converter also provides quick access to a scientific calculator, but that's about the only extra you'll find. Whether you're a scientist working out complex equations or a traveler who's baffled by the metric system, this freebie can help you out of a bind.