The Engineering ToolBox
Definitions, online calculator and figures and tables with water properties like density, specific weight and thermal expansion coefficient of liquid water at temperatures ranging 0 to 360°C (32 to 680°F).
Scientific Calculator - The Engineering ToolBox
This calculator can handle input numbers in several different bases: Decimal (Base 10): Numbers that do not start with a zero like 15 or 3.14e15. Decimal numbers can contain digits 0-9, decimals, and scientific notation.
Electric Motor Calculator - The Engineering ToolBox
The calculators below can be used to calculate electric motor amps, horsepower and 3-phase kVa. Calculate Current (amps)
Natural Gas - Pipe Sizing Calculator - The Engineering ToolBox
Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Natural Gas - Pipe Sizing Calculator Calculate capacities and dimensions of natural gas pipe lines.
Smaller Circles within a Large Circle - Calculator
The calculator below can be used to estimate the maximum number of small circles that fits into an outer larger circle. The calculator can be used to calculate applications like the number of small pipes that fits into a large pipe or tube
Steel Pipes - Thermal Expansion Loops - The Engineering ToolBox
This calculator can be used to calculate required width and height of an U-bends expansions compensator. S - Length of expanding pipe (m) Expansion coefficient (10 -6 m/m o C)
Volume Flow - Online Unit Converter - The Engineering ToolBox
Online Fluid Flow Unit Calculator. The calculator below can used to convert between common fluid flow units:
Darcy-Weisbach Equation - The Engineering ToolBox
The calculator below, which is based on formula (1), can be used to calculate the pressure loss in a duct, pipe or tube if the velocity of the fluid is known. The default values are for air flow 20 o C , 1.2 kg/m 3 and 6 m/s - the same as in the example above.
Linear Thermal Expansion - The Engineering ToolBox
Superficial i.e area temperature expansion - online calculator. Thermal Expansion of Steam Pipes - (inches) Expansion of steam pipes heated from room temperature to operation temperature.
Pipe Weight Calculator - The Engineering ToolBox
This calculator can be used to calculate the weight of a pipe with - or without - liquid. The calculator is generic and can be used for both SI and Imperial units as long as the use of units are consistent.