Namma Water Bill Calculator - BWSSB Water Charges Calculator Bangalore

Frequently Asked Questions

💰 Water Bill Calculations

The 2025 BWSSB rates are: 0-8,000L: ₹0.15 per 100L, 8,001-25,000L: ₹0.40 per 100L, 25,001-50,000L: ₹0.80 per 100L, 50,000L+: ₹1.00 per 100L. Rates were revised in April 2025 after 11 years.

Subtract previous month's reading from current reading. Multiply by 1000 if meter shows in KL (kilolitres). Example: Current 15 KL - Previous 10 KL = 5 KL = 5,000 litres consumed.

Sanitary charges are 25% of water charges for sewage treatment. If water charges are ₹400, sanitary charges will be ₹100. This covers wastewater treatment and disposal services.

Yes. Additional charges include: Meter service charges (₹30-150), Sanitary charges (25% of water charges), Borewell charges (₹100-500), and service tax where applicable.

BWSSB revised rates after 11 years citing 107% increase in electricity costs and 122% rise in operational expenses. The board had a monthly deficit of ₹80 crore, necessitating the rate revision.

🏠 Connection Types

Domestic connections are for residential use with lower rates (₹0.15-1.00 per 100L). Commercial rates are higher (₹1.00+ per litre) for business, industrial, and non-residential use.

High-rise apartments have separate rates: 0-2 lakh L: ₹0.30 per 100L, 2-5 lakh L: ₹0.60 per 100L, 5-10 lakh L: ₹1.00 per 100L. Total bill is divided among units based on society rules.

Yes, you can apply for connection type change at BWSSB office with necessary documents. Commercial rates will apply from the conversion date, and additional deposits may be required.

Mixed-use properties are typically classified as commercial connections and charged commercial rates. Separate connections may be required for purely domestic portions with proper approval.

Domestic borewell: ₹100/month, Commercial borewell: ₹500/month. These are fixed charges regardless of borewell usage and are added to regular water bill charges.

📱 Bill Management

Visit owc.bwssb.gov.in or use BWSSB mobile app. Enter your RR Number (found on previous bills) to view current dues, payment history, and download bills.

Online: BWSSB website, mobile apps, net banking, UPI. Offline: BWSSB offices, authorized collection centers, banks. Payment through PayTM, PhonePe, Google Pay also accepted.

Yes, late payment attracts penalties. Additionally, connections may be disconnected for non-payment beyond due dates. Pay before due date to avoid additional charges.

Yes, BWSSB bills show: Water charges by slab, Sanitary charges, Meter charges, Borewell charges (if applicable), Previous dues, and total amount. Use our calculator for estimate breakdowns.

Contact BWSSB customer service at 1916 or visit nearest BWSSB office. Submit complaint with bill copy, meter reading photos, and required documents for investigation.

💡 Water Conservation

Fix leaks promptly, install water-efficient fixtures, collect rainwater, monitor daily usage, use greywater for gardens, and avoid wasteful practices. Every litre saved reduces your bill.

Average consumption: 2-person: 6,000-8,000L, 4-person: 12,000-15,000L, 6-person: 18,000-22,000L monthly. Higher consumption may indicate leaks or wasteful usage patterns.

BWSSB doesn't offer direct rebates, but lower consumption means lower bills due to slab rates. Properties with rainwater harvesting may get connection benefits during new applications.

AMR (Automatic Meter Reading) meters provide real-time consumption data, help detect leaks early, ensure accurate billing, and allow better usage monitoring through mobile apps.

Check for visible leaks, verify meter reading accuracy, compare with previous months, and contact BWSSB if discrepancy persists. Take photos of meter reading for documentation.

🏢 New Connections

Costs vary by connection size, location, and type. Includes application fee (₹100), pro-rata charges, connection charges, meter cost, and inspection fees. Total can range from ₹5,000-50,000+.

Property documents, ID proof, address proof, building plan approval, NOC from apartment association (if applicable), application form, and passport size photos.

Residential: Maximum 14 days, Commercial/High-rise: Maximum 42 days from complete application submission. Processing time depends on technical feasibility and document verification.

Yes, visit BWSSB portal for online application. Pay application fee online, submit required documents, and track application status. Physical verification will be conducted by officials.

Greater Bangalore Water and Sanitation Project fee applies to specific BBMP areas (7 City Municipal Council + 1 Town Municipal Council areas). One-time fee varies by connection size and location.

🔧 Calculator Usage

Our calculator uses current BWSSB rates (April 2025) and provides accurate estimates. Actual bills may vary slightly due to specific circumstances, meter reading variations, or additional charges.

Yes, includes water charges, sanitary charges, meter charges, and borewell charges. Additional charges like penalties, service tax, or special assessments are not included in estimates.

The calculator provides instant results but doesn't save data. Take screenshots or note results for future reference. All calculations are performed locally in your browser.

Differences may occur due to: exact meter reading variations, pending dues, additional service charges, special assessments, or recent rate changes not yet reflected in the calculator.

We update rates whenever BWSSB announces changes. Current calculator reflects April 2025 rates with automatic 3% annual increase provision. Check BWSSB official sources for latest rates.

About Namma Water Calculator

Our Purpose

This calculator helps Bangalore residents estimate BWSSB water bills with the latest 2025 rate structure. We provide instant calculations for different connection types, usage slabs, and additional charges.

Key Features

Updated April 2025 BWSSB rate structure
Domestic, commercial, and high-rise calculations
Borewell and sanitary charge calculations
Rate comparison tools and projections
Mobile-responsive design for easy access
No data collection or personal information required

Important Disclaimer: This calculator provides estimates only based on publicly available BWSSB rate information. We are not affiliated with BWSSB or any official water authority. Always verify charges with official BWSSB sources before payment planning.

Official BWSSB Resources:

Website: bwssb.karnataka.gov.in
Online Bill Portal: owc.bwssb.gov.in
Customer Care: 1916
Complaint Portal: BWSSB Mobile App

Calculator Accuracy

Our calculations are based on:

Official BWSSB rate revision (April 2025)
Current slab-based pricing structure
Meter service charges and connection fees
Sanitary charge calculations (25% of water charges)
Borewell charges and additional fees

Usage Terms: This tool is for estimation purposes only. Actual bills may vary based on specific meter readings, pending dues, or policy changes. We recommend verifying costs with official BWSSB channels for critical bill planning.

Namma Water Bill Calculator 2025

Water Bill Calculator

🏠 Domestic Connection

🏢 Commercial Connection

🏬 High-Rise Apartments

📊 Rate Comparison