Mechanics calculators
Torque, power, stress, strain and springs for first-pass design and lifting gear.
Enter geometry and load, check plausibility and complete safety verification.
Calculators in this category
Friction and Self-Locking on an Inclined Plane
Determine whether a body on a ramp holds by itself and what force is needed to hold it, push it up or let it down, with separate static and kinetic friction, the friction angle, breakaway force and ramp efficiency.
Open calculator →Torque Calculator: Force and Lever Arm
Calculate the torque on a shaft, bolt or lever from tangential force and lever arm.
Open calculator →Power from Torque and Speed Calculator
Calculate the mechanical power of a rotating shaft from torque and speed.
Open calculator →Surface Speed Calculator for Rotating Parts
Calculate the rim or surface speed of a shaft, disc, gear or grinding wheel from diameter and speed.
Open calculator →Normal Stress Calculator: Force per Area
Calculate the average tensile or compressive stress in a prismatic section from force and cross-sectional area.
Open calculator →Strain Calculator from Elongation
Calculate the engineering strain (relative length change) of a tension or compression member.
Open calculator →Young's Modulus Calculator
Calculate Young's modulus from stress and strain in the linear elastic range.
Open calculator →Spring Force Calculator (Hooke's Law)
Calculate the force of a linear spring from spring rate and deflection with Hooke's law.
Open calculator →Shaft Torsion Safety Factor Calculator
Calculate torsional stress and safety factor of a solid circular shaft from torque, diameter and allowable stress.
Open calculator →Tipping Stability Calculator
Calculate the safety factor against tipping of a block-shaped body from weight, base width, lateral force and its height of application.
Open calculator →Aerodynamic Drag Force Calculator for Vehicles
Calculate the aerodynamic drag force of a vehicle from drag coefficient, frontal area, air density and speed.
Open calculator →Rolling Resistance Calculator for Vehicles
Calculate the rolling resistance force of a vehicle from rolling resistance coefficient, mass and road grade.
Open calculator →Climbing Resistance Calculator for Vehicles
Calculate the climbing resistance force of a vehicle on an inclined road from mass and grade angle.
Open calculator →Drive Power Calculator from Force and Speed
Calculate the required drive power of a linear motion from feed force, velocity and drive efficiency.
Open calculator →Lever Calculator: Two-Sided Lever Equilibrium
Calculate the counter-force needed to balance a two-sided lever from a known force and both lever arms.
Open calculator →Rope and Chain Safety Factor Calculator
Calculate the safety factor of a rope or chain from its rated breaking force and the actual working tension.
Open calculator →Hoist Rope Force Calculator with Acceleration
Calculate the rope tension when lifting a load with additional acceleration from mass, gravity and acceleration.
Open calculator →Cable Sag Calculator
Calculate the sag of a slack cable or overhead line under uniform load from span and horizontal tension with the parabolic approximation.
Open calculator →Braking Distance Calculator
Calculate a vehicle's braking distance from initial speed and average braking deceleration.
Open calculator →Stopping Distance Calculator
Calculate a vehicle's total stopping distance from reaction distance and braking distance.
Open calculator →Fuel Range Calculator
Calculate the theoretical range of a combustion-engine vehicle from usable tank volume and average fuel consumption per 100 km.
Open calculator →Fuel Cost per 100 km Calculator
Calculate fuel cost per 100 km driven from average consumption and fuel price.
Open calculator →Pulley Mechanical Advantage Calculator
Calculate the ideal pull force of a pulley block from load mass and number of supporting rope strands.
Open calculator →Spring Energy Calculator
Calculate the elastic energy stored in a linear spring from spring rate and deflection.
Open calculator →Sling Angle Tension Calculator
Calculate the tension per leg of a multi-leg sling from total load, number of legs and sling angle.
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