Acceleration Calculator - Calculate acceleration from velocity change and time, force and mass, centripetal motion, or free fall. Get step-by-step solutions, g-force comparisons, and velocity-time graphs. New
Belt Length Calculator - New
Boiling Point Calculator - Calculate the boiling point of water at different altitudes, elevations, or atmospheric pressures using the Clausius-Clapeyron equation. Includes step-by-step solutions and interactive altitude chart. New
Coulomb's Law Calculator - New
Density Calculator - Calculate density from mass and volume, or solve for mass or volume given density. Supports multiple unit systems with step-by-step solutions and material comparisons. New
Electricity Calculator - Calculate voltage, current, resistance, and power using Ohm's Law and Watt's Law. Enter any two known values and instantly solve for the other two with detailed step-by-step formulas.
Engine Compression Ratio Calculator - Calculate an engine's static compression ratio from cylinder bore, stroke, combustion chamber volume, head gasket, piston deck clearance, and piston dome or dish. See an animated piston diagram, per-cylinder and total displacement, a swept-vs-clearance volume breakdown, and a fuel-octane and forced-induction advisory that tells you what gasoline your compression ratio needs. Supports millimeters/cc and inches/cubic-inch units with a full step-by-step formula walkthrough. New
Force Calculator - Calculate force, mass, or acceleration using Newton's second law F=ma. Enter any two values to solve for the third, with unit conversions and real-world force comparisons. New
Free Fall Calculator - Calculate the velocity, distance, and time for objects in free fall under gravity. Supports multiple planets and provides step-by-step solutions with trajectory data. New
Headlight Beam Distance Calculator - Calculate how far your headlight beam reaches down the road from its mounting height and downward aim angle. See the near edge, beam centre, and maximum reach of the lit zone on an animated side-view diagram, plus a glare warning if the aim is too high and a stopping-distance safety check at your driving speed. Supports metric and imperial units with a full step-by-step breakdown. New
Heat Transfer Calculator - New
Horsepower Calculator - Calculate engine horsepower from torque and RPM, or solve for any unknown. Supports Imperial (lb-ft, HP) and Metric (Nm, kW) units with step-by-step solutions and unit conversions. New
Ideal Gas Law Calculator - Calculate pressure, volume, moles, or temperature using the ideal gas law equation PV=nRT. Supports multiple unit systems with step-by-step solutions and automatic unit conversions. New
Kinematics Calculator - Solve one-dimensional kinematics problems using the four kinematic equations. Enter any 3 known variables to find the 2 unknowns with detailed step-by-step solutions.
Kinetic Energy Calculator - Calculate kinetic energy using KE = ½mv². Enter any two values to solve for the third. Supports multiple units with step-by-step solutions and real-world energy comparisons. New
Lens Equation Calculator - New
Momentum Calculator - Calculate linear momentum (p=mv), analyze elastic and inelastic collisions with conservation of momentum, and compute impulse. Step-by-step solutions with collision animation. New
Potential Energy Calculator - Calculate gravitational potential energy (PE = mgh) or elastic potential energy (PE = ½kx²). Supports multiple planets, unit conversions, and detailed step-by-step solutions. New
Pressure Calculator - Calculate pressure from force and area using P=F/A. Supports multiple unit systems (Pa, kPa, bar, atm, psi, mmHg) with step-by-step solutions, unit conversions, and real-world pressure comparisons. New
Projectile Motion Calculator - Calculate projectile range, maximum height, time of flight, and full trajectory from launch angle and initial velocity. Supports custom gravity, initial height, and animated trajectory visualization. New
Pulley System Calculator - Calculate the mechanical advantage, required effort (pull) force, and rope pull distance of a pulley system from the number of supporting rope segments. Includes an animated block-and-tackle diagram, a real-world friction model, and a step-by-step breakdown showing how you trade force for distance. Supports kg, lb, and newton loads with metric or imperial distances. New
Snell's Law Calculator - New
Stopping Distance Calculator - Calculate a vehicle's total stopping distance from its speed, including both the reaction distance and the braking distance, and see how dry, wet, snow, or icy roads change the result. Features an animated braking visualization, a side-by-side comparison of all four road conditions, driver-reaction presets, and a step-by-step physics breakdown. Supports km/h and mph. New
Thermal Expansion Calculator - Calculate the change in length, area, or volume of a material caused by a change in temperature. Pick a material (or enter your own coefficient of thermal expansion), set the start and end temperature, and instantly see the expansion or contraction, the final size, the strain, and an animated diagram of the material growing or shrinking. Supports metric and imperial units with a full step-by-step formula breakdown. New
Torque Calculator - Calculate torque from force and lever arm distance using τ = F × r × sin(θ). Solve for any unknown variable with detailed step-by-step solutions, unit conversions, and real-world torque comparisons. New
Velocity Calculator - Calculate velocity from distance and time. Supports average velocity, relative velocity, angular to linear conversion, and instant unit conversions between m/s, km/h, mph, ft/s, and knots. New
Work and Power Calculator - Calculate work done by a force (W = Fd cosθ) and mechanical power (P = W/t). Supports multiple units, angle input, and provides step-by-step solutions with energy comparisons. New
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