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# flow rate

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Equation / Last modified by Administrator on 2019/04/07 07:07
`F_r = `

Tags:

Rating

ID

vCalc.flow rate

UUID

0b131969-39ef-11e4-b7aa-bc764e2038f2

The **Flow Rate **calculator computes the flow rate based on a the total volume of flow and the duration it took to accumulate the volume.

**INSTRUCTIONS**: Choose units and enter the following:

- (
**V**) This is the total volume - (
**D**) This is the duration of time that the flow created the volume

**Flow Rate (FR): **The calculator returns the flow rate in gallons per minute. However, this can be automatically converted to compatible units via the pull-down menu.

#### The Math / Science

The formula for flow rate is:

FR = V / D

where:

- FR = Flow rate
- V = Total Volume
- D = Duration required to accumulate volume

#### General Plumbing Calculators

- Rolling Offsets (Run) – The Rolling Offset (Run) function computes the run length a rolling offset based on the offsets and fittings. (see diagram).
- Rolling Offsets (Travel) – The Rolling Offset (Travel) function computes the travel pipe length a rolling offset based on the offsets and fittings. (see diagram).
- Diagonal of a Square - This is a simple calculation to assist in computing the diagonal of a square.
- Diagonal of a Box - This computes the length of the diagonal of a box (
**T**) based on sides of length**R, S**and**U**. - Counting the number of smaller diameter pipes are needed to match the flow of larger pipes.
- Flow Rate - This computes flow rate based on the total volume and the time it took to accumulate.
- Pipe Flow Volume - This computes the total volume from a pipe based on the flow rated and the duration of flow.
- Volume of a Pipe
- Weight of Pipe Contents: Default is water. Also see Weight of sea water in pipe
- Volume of a Cylindrical Container (e.g. hot water tanks),
- Weight of Water in a Cylindrical Tank (e.g. hot water tanks),
- Volume of a Spherical Container,
- Weight of Water in a Spherical Container
- Volume of a Rectangular container
- Weight of Water in a Rectangular Container, and a
- Capillary Rise - The height of water in a small tube due to capillary force.
- Snow Water Equivalence - The volume of water created by an area and depth of snow.
- Pore Water Pressure - Pressure of uplift from the water table.
- Pressure Head - The Potential Gravity-Fed Water Pressure from a Tank (a.k.a. Pressure Head) equation calculates the water pressure that can be realized below a tank based on the height of storage.

This equation,

**flow rate**, is used in 1 calculator.**Calculators**