World Wide Metric, is a company which deals in wholesale distribution of valves, fittings, tubing and flanges and carries the largest inventory of metric products, they have this nice conversion calculator on their website, which is quick and easy to use, and can be accessed by anyone for making some accurate conversions.
As shown above, there are several units for conversion, namely Length Conversion Calculator, Weight Conversion Calculator, Pressure Conversion Calculator, Volume Conversion Calculator, and Temperature Conversion Calculator.
The conversion process is simple, all you need to do is simply enter a value in any unit, hit the ‘Calculate’ button to get the conversions in all the other units of same entity, as shown below.
The results produced are rounded off to 5 decimal places. So, if you are in need of some nice conversion tool, go ahead and try it out.