# Flow Calculator 3.0

FreeFlow calculator is a small, compact and useful tool which helps in doing flow related calculations very easy and fast. The main advantage of this software is its compactness and size. It does not contain any irrelevant option in itself. The simple interface only contains three text boxes. These text boxes correspond to the inside diameter of the cylindrical pipe, velocity and the volumetric flow rate. Any two quantities when filled in the text boxes can be used to calculate the third one. Inside diameter can be provided in any one two units ie. inches and milimeters. Similarly, velocity can also be provided in any of four units such as inches/second, feets/second, meters/second and centimeters/second. The third quantity can be expressed in any of the units such as cubic feet/sec, cubic feet/minute, cubic feet/day, US gallon/sec, US gallon/sec, UK Barrels/sec, UK Barrels/sec, US Oil Barrels/sec and US Federal Barrels/sec. Another feature of the software is that it can give the calculated result accurate up to eight decimal places.

### Review summary

Pros

- Light-weight and Fast

Cons

- None