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Resonant orbit calculator
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Physics
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Kirchhoff’s Laws Circuit Solver Online
AC Circuit Calculator (Phasor Method)
Three-phase circuit: star and delta
Nuclear Reaction Calculator: Missing Particle, Q Value, Binding Energy
Hydraulics and heat engineering
Hydraulics and heat engineering
Pipe Head Loss Calculator Online: Reynolds Number, Friction Factor
Psychrometric chart online: moist air properties and processes
Engineering surveying
Engineering surveying
Traverse calculator online (closed and open traverse)
Levelling field book and level run adjustment online
Tacheometric survey calculator: field book reduction, contour plan and 3D terrain
Setting out design elevations with a level: staff reading, grade line, cut and fill
Inverse and direct surveying problems online
Area from coordinates online (shoelace formula)
Survey intersection calculator: forward, resection (Snellius–Pothenot) and distance intersection
Map scale calculator: representative fraction, verbal scale, scale accuracy, distances and areas
Machine design and metrology
Machine design and metrology
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Surface roughness calculator: Ra ↔ Rz conversion, roughness classes and drawing symbol
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Gearbox Course Project Wizard: Drive and Gear Design Step by Step
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Rolling bearing calculator: ball bearing selection by life (GOST 8338-75)
Parallel key calculator: key size by shaft diameter (GOST 23360-78) and crushing check
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Theoretical mechanics
Point kinematics online: velocity, acceleration and trajectory from x(t), y(t)
Plane mechanism online: instantaneous centre of velocity, point velocities and accelerations
Centroid of a plane shape and composite section online: coordinates, first moments, moments of inertia
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Strength of materials
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Biology
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Punnett Square Calculator: Monohybrid, Dihybrid and Trihybrid Cross
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Probability
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Discrete random variable: distribution table, mean, variance and CDF online
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Hydraulics and heat engineering
Hydraulics and heat engineering
Pipe Head Loss Calculator Online: Reynolds Number, Friction Factor
Psychrometric chart online: moist air properties and processes