Mechanical advantage is a measure of how much a machine amplifies an input force. It is calculated by dividing the output force by the input force. A higher mechanical advantage means that less effort is needed to lift or move an object, making tasks easier. Simple machines, such as levers, pulleys, and inclined planes, utilize mechanical advantage to help perform work. For example, a lever allows a person to lift a heavy object with less force by increasing the distance over which the force is applied. This principle is essential in engineering and everyday tools.