Mechanics Calculator

  • 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.
  • Angular Velocity to RPM Calculator
    Convert angular velocity in radians per second (rad/s) to rotational speed in RPM instantly using RPM = Ļ‰ Ɨ 60 / (2Ļ€). Fast, accurate, free.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • Angular to Linear Velocity Calculator
    Convert angular velocity to linear (tangential) velocity using v = Ļ‰Ā·r. Enter angular velocity in rad/s and radius in meters to get speed in m/s.
  • 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.
  • 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.
  • 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.
  • Gear Ratio Calculator (Torque & Speed)
    Calculate gear ratio from teeth counts, then find output torque and output speed (RPM). Free online gear ratio, torque and speed calculator for any gear pair.
  • 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.
  • 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.
  • 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.
  • Radius of Gyration Calculator
    Calculate the radius of gyration k from moment of inertia and mass (k=āˆš(I/m)) or area (k=āˆš(I/A)). Free, instant, with worked example and formula.
  • Vertical Jump Height Calculator
    Calculate your vertical jump height from hang time using physics. Enter your air time in seconds to get jump height in cm, meters, and inches.
  • Parallel Axis Theorem Calculator
    Calculate moment of inertia about any parallel axis using the parallel axis theorem I = I_cm + mĀ·dĀ². Enter I_cm, mass, and axis distance.

Categories