Physics

Calculate work and power with force, distance, speed, time, angle, and unit conversions, with clear negative and zero-case notes.

Calculate work, net work from speeds, or friction work with clear units, signs, and step-by-step physics formulas.

Calculate bullet kinetic energy, velocity, or weight with unit conversion, plus optional momentum, power factor, and sectional density.

Calculate EIRP or max Tx power from gain and losses, with dBm, dBW, W, mW, ERP, and dBd to dBi conversion.

Calculate spring energy, spring constant, displacement, and combined spring stiffness with clear units and error checks.

Calculate foot-pounds of energy from projectile weight and speed, or solve for speed or weight with unit conversions.

Calculate impact energy, speed, momentum, and average impact force from mass, speed, or drop height with clear unit handling.

Calculate kinetic energy, speed, or mass with unit conversions and optional equivalent drop height in J, kJ, mph, and more.

Calculate gravitational or spring potential energy, convert units, and solve for a missing value with clear beginner-friendly steps.

Calculate power-to-weight ratio, required power, or required weight with hp, W, kW, lb, kg, ton, and tonne units.