Find the volume, surface area, lateral area and diagonal of a rectangular prism. Every step is labeled with the rule it uses and rendered in proper math notation, so you can follow how the answer comes together. Type in your problem to start. Free to use, no account required.
Example
l = 2, w = 3, h = 4 → volume 24, total surface area 52, lateral 40
Tips
Volume = l × w × h. Total surface area = 2(lw + lh + wh).
Lateral surface area counts only the four side faces: LSA = 2h(l + w). Total surface area is the lateral area plus the two bases, so SA = LSA + 2lw.
The space diagonal, √(l² + w² + h²), is the longest straight line that fits inside the prism.