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Application: Lever | Gravitational Acceleration | Throw Distance | Concentration | Electromagnet

Lever Calulator

Calculate the leverage from force or mass and length of the lever arms. The length of a lever arm is the distance from the balance point of the effective force to the point where the lever rests. The law of the lever says, that the force time the length of one arm is equal to the force time the length of the other arm. Leverage means that with a long arm on one side, a large force on the other side can be achieved.
Instead of a force, a mass can be entered, this will be converted into a force via the gravitational acceleration.

Gravitational acceleration g = N/kg

Lever arm 1Lever arm 2
Arm length


Example: the first arm has a length of 50 centimeters, 2 kilogramms are placed here. If the second arm has a length of 10 centimeters, then a force of 98 Newtons acts here.

A lever for easier movement of heavy loads has been known to mankind for thousands of years, probably at least 7000 years. The law of the lever used here goes back to Archimedes of Syracuse, who formulated it in the third century BC. The quote "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." is also attributed to him. This means that you can exert any force with a lever arm that is long enough. Archimedes probably also knew that there are no materials that can withstand any amount of force; it's just a matter of visually conveying what a lever does and what it's good for.
There are two ways to use a lever, firstly by using the longer lever arm to cover a long distance and thus allowing the shorter lever arm to cover a large amount of force in a short distance. You do this when you lever something out, for example a bottle opener works that way. The other around is, moving with a short distance and a lot of strength the long arm far. This is what a catapult does, for example.

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