To find the height of a rectangular prism with a known volume use the formula vah where v equals volume a equals the area of one side and h equals height if you dont have the area multiply the width and length of one side to get that value. Therefore the height of the rectangular prism is 046 cm nickzom calculator the calculator encyclopedia is capable of calculating the volume of a rectangular prism to get the answer and workings of the volume of a rectangular prism using the nickzom calculator the calculator encyclopedia. Calculations for a rectangular prism 1 given the length width and height find the volume surface area and diagonal of a rectangular prism h l and w are known find v s and d v lwh s 2lw lh wh d l 2 w 2 h 2 2 given the surface area length and width find the height volume and diagonal of a rectangular prism s l and w are known find h v and d