The Pressure Loss in Straight Liquid Lines Calculator is used to determine the pressure loss from friction in straight pipes or tubes that transport liquids. This calculator is suitable for very small piping or tubing, and can handle flow through small channels. It includes inlet and outlet losses, but cannot accommodate losses due to fittings and valves. For standard-sized pipes, use the Loss in Fluid Lines Calculator instead.
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Pipe/Tubing Inner Diameter (in):
Piping Material:
Flow Rate (gpm):
Viscosity (cP): (Typical Values)
Typical Viscosity Values
Gasoline @ 70F0.6 cP
SAE 30 Oil @ 70F300.0 cP
Water @ 70F1.0 cP
Specific Gravity: (Typical Values)
Typical Specific Gravity Values
Gasoline @ 70F0.750
SAE 30 Oil @ 70F0.898
Water @ 70F1.000
Temperature: (F)
Piping Length (ft):
Other Losses:

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Engineering Calculator Disclaimer

GlobalSpec, Inc. engineering calculators are free for individuals to use via this site under the terms and conditions set out under the Terms of Use of this web site and supplemented by this Engineering Calculator Disclaimer. These calculators are intended solely for general information and educational purposes, and are provided to help decrease the learning curve for those inexperienced in the engineering field and to give more experienced users additional reference tools.

The engineering calculators provided are not intended in any way as engineering advice or services, or as a solicitation for any engineering product or service. Any results from use of these calculators may not be applicable or accurate with regard to the individual circumstances, cannot be relied upon for anything, including, without limitation, engineering designs or decisions, and should not be the basis for any action or inaction on your part. Read Entire Disclaimer

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