Force Calculator

Force is not one formula, so this covers the ones that come up. Newton's second law takes a mass and an acceleration, with g available as an acceleration unit; the weight action multiplies a mass by the gravity of Earth, the Moon, Mars or a figure you supply; friction takes a coefficient and a slope angle and says whether the object holds or slides; the centripetal action takes a speed and a radius and adds the banking angle and the grip a flat corner would need; and the spring action applies F = kx with the energy stored. It also adds several forces at different angles into one net force, with its direction and components, and turns that into an acceleration when you give the mass. Every answer is given in newtons, kilonewtons, pounds force, kilograms force and dynes, using the exact defined conversions. To go the other way and find the acceleration a force produces, use the acceleration calculator.