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Dimensional Analysis

Thu Mar 06, 2008 1:32 am

It would be handy for me if the site included the dimensional analysis of units; I was converting Kilowatts to hp, and noticed that a watt was '1 Joule per second'. Outstanding, but what the heck is a Joule? I went to it's conversion page... and saw it converted to watt seconds. This wasn't as helpful as I would have liked.

Meters per second probably doesn't need a dimensional analysis published; it is obviously m / s; no problem there... but it would be nice to know exactly how more complex (or at least just SI) units break down into fundamental units. 1 Watt = 1 kg m^2 / s^3 and 1 Joule = 1 kg m^2 / s^2 is sometimes exactly the info needed; please consider adding this.

Re: Dimensional Analysis

Sun Nov 22, 2009 10:06 am

Here's a site that has a free online dimensional analysis (a.k.a. factor-label method) calculator

Re: Dimensional Analysis

Sun Sep 26, 2010 4:20 am


here is really good site for both conversions and physical constants calculations, which also does what you want,
after you get a result you can click simplify units to get the detailed units.

for example: if you type 1{J} you get 1 J you click simplify units and get 1 kg*m^2*sec^-2
to do a conversion you type 123{J}{eV} ...

also when you start typing a unit it gives you a list of available matching units to choose from.

tell me what you think.

More info

List of all units you can convert online
Metric conversion
Convert pounds to gallons
Convert grams to cups
Grams to milliliters
Imperial vs US Customary
History of measurement