Mechanics calculators
Torque, power, ratios, stress and deformation for first-pass design.
Enter geometry and load, check plausibility and complete safety verification.
Calculators in this category
Torque from force and lever arm
Determine shaft, bolt or lever torque from tangential force and lever arm.
Open calculator →Mechanical power from torque and speed
Calculate rotating shaft power from torque and speed.
Open calculator →Tangential speed of a rotating shaft
Determine rim speed of a disk, gear or grinding wheel.
Open calculator →Gear ratio from tooth counts
Determine spur-gear ratio and interpret output direction.
Open calculator →Gearbox output speed
Calculate output speed from input speed and ratio.
Open calculator →Belt-drive ratio from pulley diameters
Determine belt-drive ratio from pitch diameters.
Open calculator →Normal stress from force and area
Calculate average tensile or compressive stress in a prismatic section.
Open calculator →Engineering strain from elongation
Calculate relative length change of a tension or compression member.
Open calculator →Young's modulus from stress and strain
Determine Young's modulus from stress and strain in the linear elastic range.
Open calculator →Spring force using Hooke's law
Calculate force of a linear spring from rate and deflection.
Open calculator →Pulley mechanical advantage
Determine ideal pull force from load mass and supporting rope strands.
Open calculator →Gearbox output torque
Estimate output torque from input torque, ratio and efficiency.
Open calculator →Stored energy in a linear spring
Calculate elastic energy from spring rate and deflection.
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