DefinitionLength and Distance Calculator, which as name gives the function- the most effective way to ascertain the length that is the distance between two points in 2D or 3D or how many units do you have to convert from feet to meters or meters to feet. For instance If you wanted to calculate the distance between any two points (3, 4) and (7, 1) in a plane, the calculator would use the following distance formula : [ \text{Distance} = \sqrt{(7 - 3)^2 + (1 - 4)^2} = \sqrt{16 + 9} = 5 ]