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`V = pi * #r^2 * #h`

Enter a value for all fields

The **Volume of Water in a Tank** calculator computes the volume of water in a right circular cylinder tank.

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

- (
**tD**) Tank Diameter - (
**wD**) Water Depth

**Volume of Water in a Tank (V)**: The calculator returns the volume in gallons. However, this can be automatically converted to many other volume units (e.g. cubic inches) via the pull-down menu.

The formula for the volume of a cylinder is:

V = π•r²•h

where:

**V**is the volume of the cylinder**r**is the Radius of the cylinder which is half the diameter.**h**is the Height of the cylinder.

**Rolling Offsets (Run and Travel)**– The Rolling Offset**Rolling Offset Lengths**function computes the run and travel length a rolling offset based on the offsets and fittings. (see diagram).**Pipe Grading****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**.**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.**Pipe Volume**- Computes the volume in a pipe**Pipe Surface Area**- Computes the surface area of a pipe.**Pipe Coating Amount**- Computes the volume of coating material for a pipe such as paint, polyethylene, polyurethane, zinc, bitumen, FBE or mortar.**Pipe Grading**- Compute the drop needed over a run to maintain a grade (e.g., 4" over 12')**Volume of Water in a Tank**(e.g. hot water tanks),**Volume of a Spherical Container****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.**Pore Water Pressure**- Pressure of uplift from the water table.