How To Calculate The Depth Of Water In A Rectangular Tank. D = v0_t + 1/2_a*t^2. You can also replace your input if you know the length, so, for 650 litre water tank size, l = 1.47 m, b = 0.74 m & d = 0.6 m.

You can also replace your input if you know the length, so, for 650 litre water tank size, l = 1.47 m, b = 0.74 m & d = 0.6 m. You can also replace value your input if you know the length so, for 1080 litre water tank size, l = 2 m, b = 0.675 m & d = 0.8 m A rectangular tank is filled with water to a depth of 4m.