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) Total Volume
• (D) Duration of time

Flow Rate (FR): The calculator returns the average 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

Plumbing Calculators

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• Diagonal of a Square - This is a simple calculation to assist in computing the diagonal of a square.
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• 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.
• Weight of Water in a Tank - Computes the weight of water in a cylindrical tank based on the radius and height (or length).
• Weight of Water in a Pipe - Computes the weight of water or other substances in a pipe based on the dimension and material density.
• Weight of Sea Water in pipe - Computes the weight of sea water in a cylinder based on the radius and height (or length)
• Pressure Head - The Potential Gravity-Fed Water Pressure from a Tank (a.k.a. Pressure Head) based on the height of storage.
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• Pipe Surface Area - Computes the surface area of a pipe.
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• Volume of Water in a Tank (e.g. hot water tanks),
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• Weight of Water in a Spherical Container
• Volume of Water in Rectangular Tank 
• Weight of Water in a Rectangular Tank
• 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.
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• Water in Basement Volume: Computes the volume of water in an area such as a basement based on the dimensions and the time required to pump it out based on a sump pump rate.
• Paint for Pipes: Computes the amount of paint needed to cover the exterior surface area of one or more pipes based on the pipe diameter, length, number of coats, number of pipes and the recommended area coverage of the paint. 
• Time to Fill: Computes the amount of time necessary to fill something (e.g., tank or pool) based on the volume and flow rate.
• Pipe Insulation Calc: Computes the number of bags of pipe insulation needed for a run of pipes based on the 12' of length per bag and the length of pipe run to be insulated.