Free Kinematics SUVAT Calculator. Solve for displacement (s), initial velocity (u), final velocity (v), acceleration (a), and time (t) across standard units.

Calculate the speed of sound in dry air by temperature, freshwater, seawater, and solids. Features Mach number conversions and travel time estimates.

Calculate thermal energy transfer (Q = mcΔT), specific heat capacity, and equilibrium temperatures.

Calculate acoustic Sound Pressure Level (dB SPL) over distance, point vs line source array decay (-6 dB vs -3 dB), sound power (Lw), Pascals, and OSHA/NIOSH noise exposure limits.

Free Snell

Calculate optical refraction, critical angle, Brewster

Interactive Smith Chart and RF impedance matching calculator. Calculate reflection coefficient Γ, VSWR, return loss, and synthesize L-network lumped LC components.

Calculate rotational kinetic energy stored in spinning flywheels, cylinders, and spheres using E = ½ I ω² with built-in moment of inertia formulas.

Calculate Reynolds number (Re), laminar vs turbulent flow regime, Darcy-Weisbach friction factor, head loss, and pipe pressure drop using the Colebrook-White and Swamee-Jain equations.

Calculate acoustic reverberation time (RT60) using Sabine and Eyring formulas across octave bands. Predict room acoustics for studios, classrooms, and halls.