This calculator is relatively easy to use . Some comments and questions. The basis of the calculator is Bernoulli's equation.
1. Minor issue: Pressure unit KG/cm2 is not listed . Is this an easy addition.
2. Major Issue: Validity of the calculator. I have a client who wants to know how the calculation can be confirmed , i.e. against what reference method can the calculator be confirmed. ( Is the Bernoulli equation all that needs to be cited).
The clients concern is that if I use the calculator how does the calcualtion stand up against other references such as CRANE Hanbook or other first principle equations or other software packages .
3. Is there any available calculators that can be embedded in a spreadsheet environment. i.e many calculations required with a data base of all the varaibles layed into a spread sheet . | 
