Engineering Calculators
Interactive calculators for mechanism and machine design. Change the geometry, move a slider or drag a point, and every result and chart updates instantly. Each tool explains what its results mean and states clearly what its model covers.
Suspension Kinematics Calculator
Camber gain, roll centre, KPI, scrub radius, caster, anti-dive and bump steer for double wishbone and McPherson suspensions, with wheel travel shown in the drawing.
Open the calculator → FreeHydraulic Bottle Jack Calculator
Lifting capacity, hand force on the lever, oil pressure and number of pump strokes for a bottle jack. Includes a live pumping simulation and an isometric cutaway.
Open the calculator → FreeHydraulic Scissor Lift Table Calculator
Cylinder force over the whole lift, stroke, bore and fit checks for single-scissor lift tables, with the geometry drawn to scale. For designers and fabrication workshops.
Open the calculator → FreeFoldable Workshop Crane Calculator
Cylinder force over the whole boom movement for every telescope position, the stroke and the retracted cylinder length, the hook height and the reach.
Open the calculator →Suspension kinematics calculator
Double wishbone and McPherson front suspension: camber gain, roll centre, track change, KPI, scrub radius, caster, trail, anti-dive, bump steer and roll steer, in wheel travel and body roll. Front, side and isometric views; editable geometry; results checked against an Autodesk Inventor kinematic model.
For: Formula Student teams, kit car and off-road builders, engineering students.
Hydraulic jack calculator
Hydraulic bottle jack: lifting capacity from hand force or hand force for a given load, pump pressure, force ratio, lift per stroke, number of strokes, oil volume and heights. Scaled section with valve and plunger details, isometric cutaway and a pumping simulation you drive with the handle; method checked against published textbook examples.
For: engineering students, workshop and machine builders, designers of hand-pump hydraulic tools.
Hydraulic scissor lift table calculator
Single-scissor lift table with a hydraulic cylinder: cylinder force over the whole lift, stroke, bore and fit checks, with the raised and collapsed positions and the platform travel range drawn to scale.
For: designers of lift tables, fabrication workshops, engineering students.
Foldable workshop crane calculator
Foldable workshop crane with a telescopic boom: cylinder force over the whole boom movement for every telescope position, the stroke and the retracted cylinder length, the hook height and the reach, with the working range and the idle range to the transport position drawn to scale.
For: workshop and garage builders, designers of shop cranes, engineering students.
More calculators in preparation
Tools for lifting equipment and conveyors are in development, including a screw conveyor, a slider bed belt conveyor, a multi-stage scissor lift and a mobile gantry crane.
How the calculators are built
- Engineering first: every model is derived from mechanics and checked against an independent method or a CAD kinematic model before publication.
- Clear limits: each calculator states what its model includes and what it does not, so results are used for what they are: concept and learning tools, not a replacement for full design analysis.
- Explained results: every result has a short explanation of what it means and how it affects the design.
Need more than a calculator?
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