Estimate your monthly water charges with this KWA Water Bill Calculator. Enter your water consumption, select your consumer category, and review the estimated charges based on the applicable Kerala Water Authority tariff.
KWA Water Bill Calculator 2026–27
Estimate your monthly Kerala Water Authority water charges.
Estimated KWA Water Bill
Water Charge Breakdown
| Tariff Rule | Monthly Consumption | Monthly Water Charge | Period Water Charge |
|---|
Independent estimate. Actual KWA bills may differ due to tariff changes, billing adjustments, account-specific charges, penalties, rounding and eligibility rules.
How to Use the KWA Water Bill Calculator
Follow these steps to estimate your Kerala water bill:
- Select your consumer category: Choose the applicable category, such as domestic, non-domestic or industrial.
- Enter water consumption: Provide your monthly consumption in kilolitres (KL) or litres,
- Select the billing period: Enter the number of months covered by your estimate.
- Add applicable details: Include dwelling units for flat connections, BPL eligibility where applicable, and a sewerage connection if relevant.
- Calculate your bill: Click the calculate button to view the estimated water charges and itemized breakdown.
Tiered Rates (per Kilolitre / 1,000 litres)
| Water consumption | Water charge |
| Above 5 to 10 KL | ₹72.05 + ₹14.41 per KL above 5 KL |
| Above 10 to 15 KL | ₹144.10 + ₹15.51 per KL above 10 KL |
| Above 15 to 20 KL | ₹16.62 per KL |
Non-Domestic Consumption
| Water consumption | Fixed/base charge | Variable Charge |
| Up to 15,000 litres | ₹55.13 | ₹26.54/KL |
| 15,000–30,000 litres | ₹55.13 | ₹33.15/KL above 15 KL |
| 30,000–50,000 litres | ₹55.13 | ₹40.87/KL above 30 KL |
Industrial and Sewerage Supply
Industrial consumers are charged a fixed fee of ₹165.38 per month. In addition, consumers with a sewerage connection are subject to a sewerage charge equal to 11.02% of their water charges.
Frequently Asked Questions
A KWA Water Bill Calculator is an online tool that estimates water charges based on consumption, consumer category and applicable Kerala Water Authority tariff rates.
Select your consumer category, enter your monthly water consumption and provide any additional details required by the calculator. The tool estimates the applicable water charges and displays a breakdown.
The fixed monthly charge for industrial consumers is ₹165.38.
The sewerage charge is 11.02% of water charges for consumers with sewerage connections.
Water consumption is measured in kilolitres (KL), with 1 KL equivalent to 1,000 litres.