Science Tools

Browse and search fundamental physical, chemical, and mathematical constants

Solve common physics equations with step-by-step solutions

Calculate force, mass, or acceleration using F = ma

Calculate velocity, distance, or time using v = d/t

Calculate acceleration from velocity change and time using a = Δv/Δt

Calculate linear momentum using p = mv

Calculate kinetic energy using KE = ½mv²

Calculate gravitational potential energy using PE = mgh

Calculate voltage, current, or resistance using V = IR

Calculate electrical power using P = VI, P = I²R, or P = V²/R

Calculate voltage drop across a wire or cable run

Calculate total resistance for series and parallel resistor networks

Calculate density, mass, or volume using ρ = m/V

Calculate pressure, force, or area using P = F/A

Calculate gas pressure-volume changes using P₁V₁ = P₂V₂

Calculate pressure, volume, temperature, or moles using PV = nRT

Calculate the molar mass of chemical compounds from their formula

Calculate pH, pOH, [H⁺], and [OH⁻] for acid-base solutions

Calculate radioactive decay, remaining quantity, and elapsed time

Calculate wave frequency, wavelength, or speed using v = fλ

Calculate parts per million concentration