Solve ax²+bx+c=0 with the quadratic formula, discriminant Δ=b²-4ac, vertex, canonical form, factoring and real or com...
Compute mechanical work W=F·d·cos(θ), kinetic energy KE=½mv², work-energy theorem and power P=W/t in SI units. Four c...
Pythagorean theorem calculator: find hypotenuse or leg of right triangle. Area, perimeter, angles. Pythagorean triple...
Specific heat calculator: Q=m·c·ΔT. Find heat, mass, c or ΔT. Water (4186), aluminum (897), copper (385), iron (449) ...
Coulomb's law calculator F = k·q₁·q₂/r². Electric force between charges. k=8.988×10⁹. Presets proton-electron, NaCl, ...
Density calculator ρ=m/V. Find density, mass or volume. 23 presets: water (1000), gold (19320), aluminum (2700), merc...
Torque calculator τ = r·F·sin(θ). Lever arm, force, angle. Torque-to-power conversion (HP/kW). Wrench, car wheel bolt...