A water purifier is an indispensable appliance in any Indian kitchen today. You get a plethora of water purifiers in the market in various dimensions, capacities, and technology. However, do you know how much power does your water purifier consume?
If you wish to know, we have the right water purifier power consumption calculator for you.
Water Purifier Power Consumption
All you do is enter the following information.
- Rated power of your appliance in watts
- Hours of operation per day
- Electricity tariff in your city
You get the following information in an instant.
- Daily unit consumption by the water purifier
- Monthly units consumed by the water purifier
- Annual units consumed by the water purifier
- Monthly electricity bill
Where do you get the information?
The product manual will contain the ‘Rated Power of your Appliance.” Alternatively, it is also available on the appliance body.
Though the water purifier remains in the ON position throughout the day, it does not consume power all the time. These water purifiers come with a cut-off switch that switches off the operation when the storage tank is full.

As you open the tap to consume water, it starts functioning again, only to stop when the tank becomes full again. Therefore, the average water purifier usage in a standard Indian household should not exceed five hours a day.
The electricity tariff in your city is available on your electric service provider website or your electricity bill.
Using this information, we shall calculate the power consumption of a few water purifier models.
We have assumed the following factors.
- The daily consumption is five hours. However, you can enter the actual consumption time, depending on your usage.
- The electricity tariff is Rs 7 per unit. It can vary from one city to another.
Parameters / Water purifier | Kent Supreme Extra | Pureit Copper+ | Eureka Forbes Aquaguard Superb | Kent Maxx |
Rated Power | 60W | 60W | 35W | 36W |
Hours of operation | 5 | 5 | 5 | 5 |
Electricity Tariff | 7 | 7 | 7 | 7 |
Daily units consumed | 0.30 | 0.3 | 0.17 | 0.18 |
Monthly units consumed | 9 | 9 | 5.10 | 5.40 |
Annual units consumed | 108 | 108 | 61.20 | 64.80 |
Monthly Electricity Bill | 63.00 | 63.00 | 35.70 | 37.80 |