Water Purifier (RO)
Water Purifier (RO) Running Cost Calculator
RO / UV water purifier running cost.
Enter appliance details
Pick a preset or enter wattage manually. Adjust rate to match your DISCOM.
Quick presets
Typical: 25–80 W
Use 6–9 ₹/unit as a rough national average, or your DISCOM's top slab rate.
Money-saving tips
- Storage-tank purifiers only run when the tank is low — actual run-time is under 2 hours/day.
- Hot-and-cold models can use 3–5× more power than standard RO.
Want bill-level accuracy?
This tool uses a flat ₹/unit estimate. For an exact bill matching your DISCOM's slab, FAC and duty, use the main calculator.
Open Bill Calculator