One cusec is Equal to How Many Litres?

One cusec is equal to 28.317 litres per second. This measurement is primarily used in hydrology and water resource management to quantify the flow rate of water in rivers, canals, and other channels. A cusec, short for “cubic feet per second,” defines the volume of water flowing per second in cubic feet and is a vital unit in understanding water flow.

Complete Answer:

A cusec is the flow rate of 1 cubic foot of water per second. To convert this into litres, you can use the following relationship:

1 cubic foot = 28.317 litres

Thus,

1 cusec = 28.317 litres/second

For practical understanding:

• A flow of 10 cusecs equals 283.17 litres per second.
• Over an hour, a 1-cusec flow would move approximately 101,941 litres of water (28.317 × 3600 seconds).

TMC, or Thousand Million Cubic Feet, is another common unit used in water measurement, particularly in large reservoirs and dams.

1 TMC = 28.317 billion litres

TMC helps in quantifying the storage capacity or the water released from reservoirs. For example:

• If a reservoir holds 10 TMC of water, it can store 283.17 billion litres.
• This unit is widely used in India to estimate water storage and distribution.

In conclusion, 1 cusec equals 28.317 litres per second, and 1 TMC equals 28.317 billion litres. These units play a crucial role in water management, helping us calculate flow rates, storage, and usage.

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