Unit Type:
Unit:
Symbol:
Base equiv:

Expression:
Desired units: Conversion: 
Usage: Enter an expression with units, for example "3*ft" or "5e2*gal/min" in the expression and then click Compute to convert to SI. Or enter an equivelant unit such as "L/hr" and click compute. For a list of units, consult the list on the left.
You can add and subtract similar units, for example "10*psi2*N/ft^2"
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There is also an excel version of the unit converter. It has similar functionality.