Water Bill Estimator
Estimate your monthly water bill from usage and local rates. Sewer charges are commonly billed as a percentage of the water charge (often about the same amount), plus a fixed service charge.
Inputs explained
- Monthly water usage — Gallons used per month — a typical family uses 3,000–6,000 gallons.
- Rate per 1,000 gallons — Your utility's volumetric water rate.
- Fixed monthly service charge — The flat meter/service fee on every bill.
- Sewer charge (of water cost) — Sewer billed as a percentage of the water usage charge — 100% means sewer equals water.
How to use it
- Fill in the fields above — each input has a hint describing exactly what to enter
- Press Calculate to get your result instantly, right on this page
- Copy the result, save the tool to favorites, or share and embed it anywhere
Understanding the result
Example: Using 4,000 gallons at $6.50 per 1,000 gallons gives $26 water + $26 sewer + $20 fixed = $72 per month.
Frequently asked questions
Why is my sewer charge listed as a percentage of the water charge instead of based on actual sewage output? Many utilities bill sewer service based on metered water usage rather than measuring wastewater directly, since it's impractical to meter sewage separately, so this calculator models sewer cost as a percentage of the water charge.
Does the fixed monthly service charge change with usage? No, the fixed service charge is a flat fee added regardless of how much water you use, separate from the usage-based water and sewer costs.
Is the Water Bill Estimator free to use? Yes — it is completely free, with no sign-up, no download and no usage limits. You can use it as often as you need.
Is my data private? Yes. The calculation runs entirely in your browser — the values you enter are never sent to our servers, stored or shared with anyone.
What information do I need? Just the following: Monthly water usage, Rate per 1,000 gallons, Fixed monthly service charge, Sewer charge (of water cost). Each field includes a hint explaining exactly what to enter.
Can I use it on my phone? Yes — the tool is fully responsive and works on any device, and the same calculator is available in the EasyWorkCalcs mobile app.
Privacy
Everything you enter into the Water Bill Estimator is processed entirely in your browser. Nothing is uploaded, stored or shared — your data stays on your device.