Not to familiar with floating point math, never had to use it...I probably should have been more specific what I'm after as far as the code goes. Were not using a flow totalizer to capture the mls, just using a beaker to dispense into, valve opens at a constant pressure/flowrate (not measured & locked out) and we count how much time it took to fill the beaker, enter how much mls were dispended into the beaker on the screen then the math is done to determine how much was dispensed over time in . Any ideas on how to make this work???