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`A = 2 *pi * ( d /2) * l `

Enter a value for all fields

The **Pipe Surface Area** calculator computes the interior or exterior surface area of a pipe based on the interior or exterior diameter of circular conduit or pipe and the length of the pipe.

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

- (
**d**) Diameter of Pipe (use interior diameter for interior surface area, and exterior diameter for the exterior surface area) - (
**l**) Length of Pipe

**Surface Area of Pipe (SA):** The calculator returns the surface area in square inches. However, this can be automatically converted to compatible units via the pull-down menu.

**NOTE**: Use the **Pipe Coating Amount calculator** to compute how much material (e.g., paint, polyethylene, polyurethane, zinc, bitumen, FBE or mortar) is needed to cover the surface area of the pipe.

The equation for the surface area of a pipe is:

SA =2π⋅(d/2)⋅l

where:

- SA = Surface Area of Pipe
**d**= diameter**l**= length of pipe.

**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.

**Electrical Metallic Tubing (EMT) Calculator**: This provides the installation time and length estimates and the weight of EMT conduits.**Galvanized Rigid Conduit (GRC) Calculator**: This provides the installation time and length estimates and the weight of GRC conduits.**PVC Schedule 40 Conduit Calculator**: This provides the installation time, length and weight of PVC schedule 40 conduits.**Metal Clad (MC) Cable Calculator**: This provides the installation time, length and weight of metal clad (MC) cable.**Fiber Optic Cable Loss Budget Calculator**: Computes the acceptable dB loss in signal over a fiber-optic network based on the material type, number of connectors and splices and the overall length of the run.**Voltage Drop Calculator**: Computes the voltage drop over a length of cable and provides the needed gauge to keep voltage drop above a threshold.**Telecommunications Calculator**: This provide network and communications functions.**Rolling Offset**: Computes the run and travel distance in a rolling offset