Mechanics Calculator

  • Average Acceleration Calculator
    Calculate average acceleration from initial and final velocity over a time interval using a = Ī”v / Ī”t. Free, instant, with worked example.
  • Impact Velocity from Drop Height Calculator
    Calculate the impact velocity of an object dropped from a given height using v = āˆš(2gh). Get speed in m/s, km/h and the fall time instantly.
  • Hydraulic Press Force Calculator
    Calculate hydraulic press output force using Pascal's law. Enter input force and both piston areas to find F2 = F1 Ɨ (A2/A1) plus system pressure.
  • Lever Mechanical Advantage Calculator
    Calculate a lever's mechanical advantage and output force from arm lengths and applied force using the law of the lever F_inĀ·d_in = F_outĀ·d_out.
  • Surface Feet per Minute (SFM) Calculator
    Calculate SFM (surface feet per minute) from RPM and tool diameter, or solve for spindle RPM from a target cutting speed. Free machining speed tool.
  • Tap Drill Size Calculator
    Calculate the correct tap drill size for imperial (TPI) or metric (pitch) threads using thread engagement percentage. Fast, accurate machinist tool.
  • Hydraulic Cylinder Force Calculator
    Calculate hydraulic cylinder push and pull force from pressure and bore/rod diameter. Supports bar & mm or psi & inches. F = P Ɨ A.
  • Shaft Torque from Power Calculator
    Calculate shaft torque from motor power and RPM. Enter kilowatts or horsepower and speed to get torque in NĀ·m and lb-ft instantly.
  • Pulley RPM & Speed Calculator
    Calculate driven pulley RPM from driver pulley diameter, speed, and driven diameter using N2 = N1 Ɨ D1 / D2. Find belt drive ratio fast.
  • 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.
  • 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.

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