Free water bill check

Why did my water bill change?

Type your last two bills, or upload one. See whether billing days, usage or price moved, and the one thing to check next.

Two bills · answer as you type

Why did my bill jump? Check it in 30 seconds.

Type the total and billing days from your last two bills. The answer updates as you type.

Last bill
This bill

Enter both bills to see what changed.

Usage is on the bill near the meter reads. Add it to split a leak from a price change.

  • More billing days—
  • More water per day—
  • Higher price per unit—

Estimate from the numbers you type, using the same math as the spike splitter. Nothing is sent anywhere.

About 2 minutes • No account required

No bill handy? Start with your ZIP.

  • No login
  • Redact details
  • Deleted after analysis
  • No data sold

Educational estimates only, not legal, financial or plumbing advice.

How it works

From the bill to one next step

  1. Bring the numbers

    Two bills, one bill, or just your ZIP if the bill is not in hand.

  2. See what actually changed

    Billing days, usage or price, worked out from what you type.

  3. Leave with one move

    The single check worth doing this billing cycle.

Guides

Find the cause before you buy a fix

Why is my water bill so high?

Usage, price, sewer or a leak: check them in order.

Sudden high water bill

Bill jumped out of nowhere? Four causes, checked in order.

Sudden bill spike diagnosis

A few taps name the likely cause and a 10-minute check.

Water bill spike splitter

Put two bills side by side and see what changed.

Is my water usage normal?

Your usage in gallons a day, next to a typical home.

Compare bills month over month

Compare per day, because billing periods differ.

Estimated meter read true-up

A low estimate now can mean a catch-up bill later.

How water meter reads work

Read the dials, match the bill, catch a misread.

Silent toilet leak cost

Dye-test tonight. Fix the flapper first.

Toilet dye test

A few drops of food coloring tell you if a toilet leaks.

Running toilet cost calculator

Toilet still running? See what it adds to the bill.

Leaky faucet drip cost

Count the drips, see the gallons and dollars.

Irrigation timer bill spike

A stuck summer schedule can outweigh every indoor fixture.

Broken sprinkler head cost

Work out the daily waste, then fix it or call a pro.

Did a hose timer leave outdoor water on your bill?

Quiet house, jumping bill: check the outdoor timer.

Pool fill sewer credit

Water you keep in the pool may not belong on the sewer charge.

How runoff retention changes your stormwater bill

What the stormwater fee measures and what can lower it.

Why water pressure fluctuates

Four taps name the likely cause and the next step.

Why is my water pressure low?

Whole house or one fixture: name the cause before you call.

Pressure reducer valve check

How to tell if the valve at your meter is failing.

Why is my water billing estimated?

Compare the estimate with your last actual read.

For plumbers and property managers

Free water leak red flags and a bill spike kit. No email needed.

For plumbers

FAQ

Nope. Start with a bill or a calculator.
We summarize public guidance and link sources. You decide what to do next.
No. But we can help you find the biggest, easiest opportunities.
Start with the full diagnosis guide — then run leak check or analyze your PDF.