General Mechanics Calculator
A collection of general mechanics/physics calculators such as energy and density.
Kinetic Energy Calculator
Kinetic energy is the energy of a moving object, proportional to mass times velocity squar...
Read MorePotential Energy Calculator
Potential energy is the energy an object has due to height, found by multiplying mass, gra...
Read MoreForce Calculator
Using Newton's second law, enter mass and acceleration to find the required force (F = ma)...
Read MorePressure Calculator
Enter force and area to calculate pressure, the force per unit area (P = F/A).
Read MoreWork & Power Calculator
Enter force, distance, and time to calculate work (W = Fd) and power (P = W/t).
Read MoreAbout This Category
Energy, force, pressure and waves share one habit: they convert a measurement into a unit that makes a comparison possible. Kinetic energy turns speed into joules, density turns mass and volume into a material property, pressure spreads a force over an area.
The formulas are the standard ones — ½mv², mgh, F = ma, p = F/A, P = W/t — and every page states the units in and out so a result can be checked dimensionally before it is trusted.
Frequently Asked Questions
Why does doubling speed quadruple kinetic energy?
Because energy depends on the square of speed. A car at 100 km/h carries four times the energy it does at 50 km/h, which is why braking distance grows much faster than speed.
What is the difference between mass and weight?
Mass is the amount of matter in kilograms and does not change. Weight is the force gravity exerts on it in newtons, and drops to about a sixth on the Moon.
Does pressure depend on the amount of water?
Only on depth, not volume. A narrow tube 10 m deep has the same pressure at the bottom as a lake 10 m deep.
Calculators in This Category
Sources & last update
2026-10-19