Water Bill Calculator — WASA
Enter your connection size and city to estimate your WASA water bill. Most residential connections (½ or ¾ inch) pay Rs. 300-800/month including sewerage charges.
Estimate Your Water Bill
WASA Water Bill Rates by Connection Size
| Connection Size | Water Charge | Sewerage (60%) | Total/Month | Typical Use |
|---|---|---|---|---|
| ½ inch | Rs. 300 | Rs. 180 | ~Rs. 480 | Small house, 2-3 people |
| ¾ inch | Rs. 450 | Rs. 270 | ~Rs. 720 | Medium house, 4-5 people |
| 1 inch | Rs. 800 | Rs. 480 | ~Rs. 1,280 | Large house, 6+ people |
| 1½ inch | Rs. 1,500 | Rs. 900 | ~Rs. 2,400 | Commercial / large villa |
| 2 inch | Rs. 2,500 | Rs. 1,500 | ~Rs. 4,000 | Commercial / industrial |
How Water Billing Differs from Electricity and Gas
Unlike electricity and gas bills that vary based on consumption, most Pakistani water bills are flat-rate charges based on connection pipe diameter. Larger pipes = higher fixed monthly charge, regardless of how much water you actually use. Sewerage charges are typically 60% of the water charge, added automatically.
This system has pros and cons: you never get a surprise high water bill, but you also have no financial incentive to conserve water. Some cities (particularly Lahore) are gradually introducing metered water billing in new developments, which charges based on actual consumption.
The key difference: water bills are predictable and low compared to electricity and gas. A ¾ inch residential connection pays the same ~Rs. 720/month whether you use 100 liters or 1,000 liters daily. This makes water the most affordable utility for Pakistani households — but it also means there's no bill-based incentive to fix leaking taps or reduce wastage.
For electricity bill estimation: electricity bill calculator. For gas: gas bill calculator. Check your water bill: WASA bill online check.
WASA rates vary by city — Lahore WASA, Rawalpindi WASA, and Faisalabad WASA each set their own rate schedules. The rates above are approximate averages; check your city's WASA website for current rates.
When to Pay Attention to Your Water Bill
While water bills are low and predictable, there are situations where they matter: unauthorized connection charges (Rs. 5,000-20,000 penalty), disconnection for non-payment (reconnection fee: Rs. 500-2,000), and bore permit requirements in some cities. If you're digging a private borehole, WASA permission may be required depending on your city's water table regulations.
Water tanker costs also provide context: a 1,000-gallon tanker in Lahore costs Rs. 1,500-3,000. Families relying on tankers spend Rs. 6,000-15,000/month — compared to Rs. 500-800 for WASA piped water. The WASA connection, despite its fixed charges, is by far the cheapest water source available.
For properties with multiple connections (e.g., residential + garden), each connection is billed separately. Commercial connections pay 2-3x residential rates for the same pipe size. If your shop is being charged residential rates (or vice versa), contact WASA to correct the connection type.
Estimates only. Calculator results are approximate. Actual amounts vary based on your specific provider, location, and applicable rates. Use for planning — verify with official sources.
Water Bill Calculator — Connection Questions
Most residential connections are unmetered — bills are flat charges based on pipe size. Some newer developments in Lahore and Islamabad have metered connections. Commercial and industrial connections are more likely to be metered.
Because it's based on connection size, not consumption. A ¾ inch connection pays the same amount regardless of water usage. Only metered connections show consumption-based variation.
Sewerage is typically 60% of your water charge, added automatically. A Rs. 450 water charge results in Rs. 270 sewerage charge, for a total of Rs. 720.