Math, Science & Engineering
A complete collection of scientific and engineering calculation tools for students, educators, professionals, and enthusiasts. From basic unit conversions to advanced physics simulations, financial calculations, and specialized engineering tools. Solve equations, convert measurements, calculate loan payments, simulate physical phenomena, balance chemical equations, design electrical circuits, and estimate construction costs—all with accuracy and ease.
Calculate the molar mass of any chemical formula instantly. See the elemental breakdown with atom counts, mass contributions, and percentage composition.
Calculate pH, pOH, hydrogen ion and hydroxide ion concentrations. Supports strong and weak acid and base solutions with step-by-step solutions.
Calculate linear momentum (p = mv), solve for mass or velocity, and analyze elastic or perfectly inelastic collisions with unit conversions and energy analysis.
Solve the Q = mcΔT heat equation for heat energy, mass, specific heat, or temperature change, with a 20-material lookup table and unit conversions.
Calculate wavelength, frequency or wave speed with λ = v/f. Works for light and sound, with wave-type presets, unit conversions and an EM spectrum view.
Calculate the period, frequency, and length of a simple pendulum. Supports eight planets with a live animated visualization.
Find the height, fall time, and impact velocity of a free-falling object under gravity on Earth or any other planet.
Calculate density, mass, or volume with the formula ρ = m/V. Mix units freely, get real-time results, and compare against common materials.
Calculate acceleration, velocity, displacement, or time using kinematic equations. Solve for any variable with step-by-step solutions.
Calculate kinetic energy, mass, or velocity using KE = ½mv². Supports multiple units with real-time results and energy comparisons.
Solve Newton's Second Law (F = ma) for force, mass, or acceleration. Enter any two values to get the third, with multiple units and visual comparisons.
Calculate gravitational potential energy, mass, gravity, or height using PE = mgh. Supports multiple units and one-click planet gravity presets.