Today, "Commando" usually refers to an individual special forces operator. For example, the 1st Commando Regiment
In military science, a "force multiplier" is a factor that dramatically increases the effectiveness of a group without increasing its size. Commandos are the ultimate force multipliers.
The question mixes two different military concepts — rank/role vs. combat power . No army assigns a fixed “exchange rate” because commandos are used for precision, not volume. The real answer depends on the mission, terrain, and enemy.
The statement "one commando is equal to how many soldiers" usually refers to a popular military myth or a "chuck norris" style joke rather than a literal tactical calculation