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Online Calculators

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Online Calculators
efunda A comprehensive suite of Online calculators and under continous expansion. The following are the types of calculators - Units Conversion, Wire and Sheet Gauge, O-Ring, Spring, Hardness, Decimal, Beam, Reynolds Number, Single Degree of Freedom Vibration, Stress Transformation, Principal Stress, Failure Criteria, Pipe Friction, Venturi Flow, Radiation and Elastic Constants. Other calculators available are for Pure Mathematics and Finance.
Created by
Mechanism Construction & Animation Very impressive and powerful java appelet for creating your own mechanisms with links, springs, mass, gravity and actuators.
Created by SodaPlay
Dirac Delta Huge compendium of online calculators related to aerodynamics, acoustics, civil engineering, electronics, mathematics, mechanical engineering, vibration, optics, physics & signal processing. Besides the online calculators it also serves as an encylopedia on the listed topics.
Created by Dirac Delta Consultants Limited
Engineers Tool-Box The Engineers Tool-Box is a set of online computational tools for Beams, Cylinders, Columns, Dynamic Systems, Materials Properties, Section Properties, Vibrations, Fracture Mechanics etc.
Created by Engineers Tool-Box
Rotor balancer & Vibration calc A rotor balancing simulator. Transducer calculator converts the measurement of overall vibration transducers in the range of 4-20 mA to the actual vibration units. Sinusoidal vibration calculates amplitudes between different unit systems (metric, english), physical variables (acceleration, displacement, velocity) and overall amplitude values (rms, peak and peak-to-peak).
Created by OnlineVib
Hydraulic Calculator For the Diameter & Speed of Sprockets, V-belt length, Push-Pull for Hydraulic Cylinders, Displacement of Gear Pumps and Motor H.P output.
Created by Baum Hydraulics Company
Beam Design Calculator For Beam design using the spreadsheet program MS Excel. Must be Online to operate the application.
Created by Professional Engineering
Hertzian stress Hertzian contact stresses and subsurface stresses are calculated for point or line contact. Both line or point contact are considered.
Created by MESYS AG
Plate stress & vibration FEA of Kirchoff plates for stresses, vibration & buckling. Additional tools including hyrdofoil analysis.
Created by Matti Hyötyniemi
Fatigue Fatigue analysis methods based on stress-life, strain-life or crack growth.
Created by eFatigue LLC
Units, kVAr, Darcy A number of online calculators for units conversion, friction loss using the Darcy-Weisbach equation, capacitor requirements. Also on the site are data tables for water properties, conductivities, secific heat and a periodic table.
Created by Gregory Manachos
Engineers Edge Calculators for acceleration conversion, velocity conversion, energy to work conversion, area, triangle, square, circle etc., length conversion, fluids flow, aerodynamics , mass conversion, automotive horsepower, power conversion, kinetic energy, pressure conversion, tolerance calculator (fixed fastener), temperature conversion, tolerance calculator (projection zone), tolerance calculator (2 mating features @ MMC), metrology conversion.
Created by The Engineers Edge
The Engineers Page Online engineering calculations for pressure drop, line sizing, pump applications, centrifugal pump sizing and heat exchangers including thermal rating.
Created by The Engineers Page
Software4Structures collection of powerful and easy to use online calculations and models: beams, trusses, plates and shells.
Created by Alex Yevkin
i-Calculator Fatigue life and beam stress caluclator.
Created by Faraz
Thermal Calculators 1 & 2-D steady state conduction & capacitance calculators for various geometries.
Created by Novel Concepts Inc
Electronic Cooling Calcualtors Primarily for calcualting cooling in electronic devices, but can be used for all the classical heat transfer problems as well.
Created by Frigus Primore
Material TakeOff Wizard Residential construction calculators.
Created by Material TakeOff Wizard
Tool Ref Online programs for metalworking, machining, and design work.
Created by ToolRef
Boiler Calculations Online programs for boiler design - combustion, efficiency, steam, gas, water properties, volume to weight conversion.
Created by FireCAD Technologies
Boiler Calculations Online programs for boiler design - combustion, efficiency, steam, gas, water properties, volume to weight conversion.
Created by FireCAD Technologies
PowerESIM Online power supply simulation software severe restrictions for non-registered users to only the automatic design feature, Magnetic Builder, loop analysis & loss analysis.
Created by Power eSIM.
Sizing Tools Online calculators for precision motions, motors controllers, tolerances, vibrations, heat transfer, actuators, springs, screws, reliability, shafts, sytems and a few more.
Created by Optinet Inc
Change Units Free Excel add-on to change units in a natural way without ever having to leave Excel again to do a unit conversion.
Created by Change Units
Kamlex Units Converter Free units conversion software for pressure, power, energy, magnetic induction, dynamic & kinematic viscosity, luminance, temperature, mass, volume, length & time.
Created by Kamlex Engineering Solutions
MyCalculations Lots of calculators for mechanical, petroleum, civil , chemical engineering & science (physics, chemistry, biotechnology, nanotechnology).
Gerotor Gerotor Pump Calculator.
Glendhoer Thermodynamics, hydraulics, batch reactor heat transfer. Useful for chemical & mechanical engineers.
Beam Open source engineering tool that calculates member forces and support reactions of a continuous beam.
Snow/Wind Loads Free online calculators for snow loading, ice loading, seismic base shear and wind loading.
OnlineFEA Free online 2D truss & frame element FEA.
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Last updated on April 13, 2011

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