1 cusec is equal to how many litres?

Answer: 1 Cusec = 28.317 litres

For flow rate calculation, Cusec is used and Cusec is equal to cubic feet per second.

We know that

One feet is equal to 30.48 cm

So,

1 cubic feet = 30.48 cm ✕ 30.48 cm ✕ 30.48 cm

1 cubic feet = 28,316.85 cm3

To convert cm to liter we need to divide it by 1000.

⇒ 28,316.85 / 1000

⇒ 28.317

1 Cusec = 28.317 litres per second

Cusec is a derived unit not a fundamental unit and it is derived using fundamental units of time and volume.