Shaft Diameter Calculator
Preliminary torsional sizing for solid and hollow shafts.
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Engineering Calculators
23 published calculators with traceable inputs, formulas, assumptions and review notices.
23 calculators
Torque Calculator
Calculate transmitted torque from power and rotational speed.
Open calculator →Sheet Metal Flat Pattern Calculator
Develop a sheet-metal blank from bend geometry and folded-part dimensions.
Open calculator →Press Brake Tonnage Calculator
Estimate bending force, press tonnage and preliminary machine capacity.
Open calculator →Shape Weight Calculator
Calculate theoretical stock weight for common bars, tubes, plates and structural sections.
Open calculator →Gear Ratio Calculator
Calculate the ratio and output speed for a simple external gear pair.
Open calculator →Bearing Life Calculator
Estimate basic rating life for a radial ball bearing.
Open calculator →Spring Rate Calculator
Calculate the rate of a close-coiled helical compression spring.
Open calculator →Bolt Preload Calculator
Estimate proof load and target preload for a bolted joint.
Open calculator →Fatigue Safety Factor Calculator
Estimate modified Goodman safety factor for axial or bending stress.
Open calculator →Machining Speed & Feed Calculator
Calculate spindle speed and table feed for milling.
Open calculator →Sheet Metal Bend Allowance Calculator
Calculate bend allowance using bend angle, radius and K-factor.
Open calculator →Fillet Weld Strength Calculator
Estimate static capacity of a single straight fillet weld.
Open calculator →Plate Weight Calculator
Calculate plate mass from dimensions and density.
Open calculator →Pipe Flow Velocity Calculator
Calculate average fluid velocity from volumetric flow and inside diameter.
Open calculator →Pump Power Calculator
Estimate hydraulic and input power for a pump.
Open calculator →Hydraulic Cylinder Force Calculator
Calculate ideal extension force from pressure and bore diameter.
Open calculator →Heat Transfer Rate Calculator
Calculate heat-transfer rate from overall coefficient, area and temperature difference.
Open calculator →Sensible Heat Calculator
Calculate sensible heat for a mass undergoing a temperature change.
Open calculator →HVAC Cooling Load Calculator
Estimate a preliminary cooling load from area and design load density.
Open calculator →Beam Bending Stress Calculator
Calculate nominal bending stress from moment and section modulus.
Open calculator →Length Unit Converter
Convert a length value from millimetres to common engineering units.
Open calculator →Shaft Critical Speed
Estimate first critical speed from known static deflection at a concentrated rotating mass.
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