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`W = pi * ( d /2)^2 * l * 1000 `

Enter a value for all fields

The **Weight of Water in a Pipe** calculator computes the weight or mass (M) of the contents of a section of a pipe based on the interior diameter (**d**) of circular conduit or pipe, the length (**l**) of the pipe and a (**μD**)mean density of its contents. The default mean density is for water.

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

- (
**d**) Inner diameter of the pipe. - (
**l**) Length of the pipe. - (
**μD**) Mean density of contents (default pure water)

**Weight or Mass of the Contents of a Pipe (W):** The calculator returns the weight in pounds. However, this can be automatically converted to compatible units (e.g. kilograms) via the pull-down menu.

The equation for the volume of a pipe is:

- M =π⋅(d/2)
^{2}⋅l⋅mD

where:

**M**is the mass or weight of the contents of a pipe**d**is the inner diameter**l**is the length of pipe.**mD**is the mean density of the contents of the pipe.

For the mean density of other substances, you can use the mean density lookup function by CLICKING HERE. With other mean densities, the user can calculate the content weight of a pipe containing fluids such as diesel fuel, alcohol or sludge.

- 1,000 kg/m
^{3}- Pure Water - 1,022 kg/m
^{3}- Sea water - 1,037 kg/m
^{3}- Milk - 860 kg/m
^{3}- Olive Oil - 885 kg/m
^{3}- Diesel Fuel - 870 - 920 kg/m
^{3}- Crude Oil - 890 kg/m
^{3}- Fuel Oil - 789 kg/m
^{3}- Ethanol - 737 kg/m
^{3}- Gasoline (petrol) - 1,442 kg/m
^{3}- Cement Slurry

**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 Volume**- Computes the amount of coating material for a pipe.**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.

- Volume Pumped over time by Pump Flow-rate
- Time to Pump Volume by Flow-rate
- Duplex Pump Output: Barrels per stroke from a duplex pump.
- Triplex Pump Output: Barrels per stroke from a triplex pump.
- Quintuplex Pump Output: Barrels per stroke from a quintuplex pump.
- Barrel Production: Computes the total volume (barrels) produced over a period of time based on the production rate and duration.
- Annular Velocity: Compute the fluid flow velocity, based on the flow rate and pipe dimensions.
- Mud Buoyancy: Computes the buoyancy in mud
- Volume of a Pipe: Computes the volume of a pipe.
- Weight of Pipe Contents: Computes the weight (mass) based on density and pipe dimensions.
- Density of Oil:
- Crude at (48° API): 790.0 kg/m³
- Crude at (40° API): 825.0 kg/m³
- Crude at (35.6° API): 847.0 kg/m³
- Crude at (32.6° API): 862.0 kg/m³

- Energy in Crude Oil: 5800000.0 BTU/bbl
- Pump Efficiency