Calculator List   |   Blog

Trapezoidal Shape Volume (equal slopes at opposite sides)

L2 = L1
2D/tan α

W2 = W1
2D/tan β

V = 
 (2 W1 L1+ 2 W2 L2+ W2 L1+ W1 L2 )
V = W1 L1 D + ( 
W1/tan α
L1/tan β
 ) D2 + 
4/3 (tan α)(tan β)
 • To see proof of equations, click here.

 Step 1: Select a System of Measurement:
  U.S. Customary Units:  ft & s
  U.S. Customary Units:  in & s
  SI Units:  m & s
  SI Units:  cm & s

I do not claim in any way that these calculators are free of errors - I develop them as a hobby - so use them at your own discretion. If you encounter an error, please let me know here.