Diameter Velocity & Flow Rate
Ultra Calculator
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Do you want to solve for:
      Pipe Diameter
Velocity    
Flow Rate

DIAMETER
VELOCITY
FLOW RATE

























I N S T R U C T I O N S

This ultra calculator is special by allowing you to choose among a great variety of units (6 for diameter and 24 each for velocity and flow rate). Unlike other calculators, you are NOT confined to inputting diameter in inches, velocity in miles per hour, etc. making this calculator quite versatile.

1) Water is flowing at 36 inches per second and at a rate of 1.0472 cubic feet per second. What is the pipe diameter?
The most important step in using this calculator is:
FIRST CHOOOSE WHAT YOU ARE SOLVING FOR
In this case we are solving for PIPE DIAMETER, so click on that button.
Enter 36 in the velocity box and choose inches per second from its menu.
Enter 1.0472 in the in the flow rate box and choose cubic feet per second from its menu.
Click the CALCULATE button and you will see this equals 8 inches.
AND you get to see the answer in 5 other different units !!

2) Water is flowing through a 10 centimeter diameter pipe, at a rate of 9 liters per second. What is the water velocity?
FIRST CLICK ON WHAT YOU ARE SOLVING FOR - VELOCITY
Enter 10 in the pipe diameter box and choose centimeters from its menu.
Enter 9 in the in the flow rate box and choose liters per second from its menu.
Click the CALCULATE button and the answer is 114.59 centimeters per second AND the answer is in 23 other different units !!

3) Water is flowing through a 2 foot diameter pipe, at a rate of 20 inches per second. What is the flow rate?
FIRST CLICK ON WHAT YOU ARE SOLVING FOR - FLOW RATE
Enter 2 in the pipe diameter box and choose feet from its menu.
Enter 20 in the in the velocity box and choose inches per second from its menu.
Click the CALCULATE button and the answer is 5.236 cubic feet per second AND the answer is in 23 other different units !!


Significant Figures >>>
For easy readability, numbers are displayed in a "significant figure" format so you will not see answers such as 77.3333333333333333.
Numbers larger than 1,000 will be displayed in scientific notation and with the same number of significant figures specified. You may change the significant figures displayed by changing the number in the box above.
Internet Explorer and most other browsers, will display the answers properly but there are a few browsers that will show no output whatsoever. If so, enter a zero in the box above. This eliminates all formatting but it is better than seeing no output at all.


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