Mechanics Calculator

  • Perfectly Inelastic Collision Calculator
    Calculate the final common velocity, total momentum, and kinetic energy lost in a perfectly inelastic collision where two objects stick together.
  • Power from Force and Velocity Calculator
    Calculate mechanical power from force, velocity and angle using P = FĀ·vĀ·cos Īø. Get results in watts, kilowatts and horsepower instantly.
  • Deceleration Calculator
    Calculate deceleration (negative acceleration) from initial and final velocity using either distance or time. Get m/sĀ² and equivalent g-force instantly.
  • Crash / Impact Force Calculator
    Calculate the average impact force of a crash or collision from mass, impact speed, and stopping distance. Get force in N, kN, energy, and g-force.
  • RPM to Linear Speed Calculator
    Convert RPM to linear surface speed using v = Ļ€ Ɨ D Ɨ RPM. Enter diameter and rotational speed to get m/s, km/h, ft/min, and mph instantly.
  • Simply Supported Beam Deflection Calculator (Center Point Load)
    Calculate the maximum mid-span deflection of a simply supported beam under a central point load using Ī“ = PLĀ³ / (48EI). Free engineering tool.
  • Pulley System Mechanical Advantage Calculator
    Calculate the mechanical advantage of a pulley system and the effort force needed to lift a load. Enter supporting rope segments and load weight.
  • Projectile Maximum Height Calculator
    Find the maximum height of a projectile from its initial velocity and launch angle. Uses H = (vĀ·sinĪø)Ā²/(2g) with adjustable gravity.
  • Projectile Time of Flight Calculator
    Calculate the time of flight of a projectile from its initial velocity and launch angle. Also returns maximum height and horizontal range.
  • Power Calculator
    Calculate power in watts from work (energy) and time using P = W / t. Free physics power calculator with horsepower conversion and worked examples.
  • Kinetic Friction Incline Acceleration Calculator
    Calculate the acceleration of a block sliding down a rough incline from angle, kinetic friction coefficient, and gravity using a = g(sinĪø āˆ’ Ī¼cosĪø).
  • Coefficient of Restitution Calculator
    Calculate the coefficient of restitution (e) from collision velocities or from drop and bounce heights. Free, instant physics calculator.
  • Continuity Equation Flow Rate Calculator
    Solve the continuity equation Aā‚vā‚ = Aā‚‚vā‚‚ for fluid velocity and find volumetric flow rate Q = AĀ·v in pipes and ducts instantly.
  • Elastic Collision Calculator
    Compute the final velocities of two objects after a 1D elastic collision from their masses and initial velocities. Conserves momentum and kinetic energy.
  • Rectangle Area Moment of Inertia Calculator
    Calculate the area moment of inertia (Ix and Iy) of a rectangular cross-section about its centroidal axes from width and height.
  • Stopping Distance from Friction Calculator
    Calculate the stopping distance of a sliding object from its speed and friction coefficient using d = vĀ²/(2Ā·Ī¼Ā·g). Includes deceleration and stop time.
  • Motor Torque Calculator
    Calculate motor torque (NĀ·m) from power in watts and speed in RPM using T = P / (2Ļ€Ā·RPM/60). Free, instant electric & mechanical motor torque tool.
  • Motor Power Calculator
    Calculate mechanical motor power from torque and RPM. P = T Ɨ 2Ļ€Ā·RPM/60, with instant output in watts, kilowatts and horsepower.
  • Thermal Stress Calculator
    Calculate thermal stress in a fully constrained material from Young's modulus, thermal expansion coefficient, and temperature change using Ļƒ = EĀ·Ī±Ā·Ī”T.
  • Maximum Static Friction Calculator
    Calculate the maximum static friction force from the coefficient of static friction and the normal force using F_s,max = Ī¼_s Ā· N. Free physics tool.
  • Work-Energy Theorem Calculator
    Calculate net work done on an object using the work-energy theorem: W = Ī”KE = Ā½m(vfĀ²āˆ’viĀ²). Enter mass and initial/final velocities to get work in joules.
  • Pump Hydraulic Horsepower Calculator
    Calculate pump hydraulic horsepower (HHP) from flow rate (GPM), total head (ft), and fluid specific gravity. Free, instant water horsepower calculator.
  • Torque from Moment of Inertia Calculator
    Calculate the torque required to rotate an object using Ļ„ = IĀ·Ī±. Enter the moment of inertia and angular acceleration to get torque in NĀ·m instantly.
  • Spring Constant Combination Calculator
    Calculate the equivalent spring constant for springs in series or parallel. Enter up to 4 spring constants and get the combined stiffness instantly.

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