Are these plumbing calculators free?

Yes. Every tool runs in your browser, shows its arithmetic and asks for no email. Nothing you type is stored.

Why do the cost tools start at $0?

HyrePlumber holds no dataset of plumbing prices, so a default would be a number with nothing behind it. Type the figures from your own bids.

How much water do household leaks waste?

EPA WaterSense: “The average household’s leaks can account for more than 9,300 gallons of water wasted every year.” A faucet dripping once a second can waste more than 3,000 gallons a year.

What temperature should my water heater be?

CPSC urges 120°F against scalds; CDC advises storing hot water above 140°F against Legionella. A thermostatic mixing valve delivers tempered water from a hotter tank.

Do I have a lead service line?

Ask your water system. EPA requires systems to publish their service line inventory, and new lead pipe was banned in 1986.

Is hard water a health problem?

EPA sets no limit for hardness. It is a scale and soap question. USGS classes water above 120 mg/L (about 7 grains per gallon, at 17.1 mg/L per grain) as hard.

Does HyrePlumber do plumbing work?

No. HyrePlumber does no repairs or installations and sends no plumbers. The tools help you understand a problem or a bid.

HyrePlumber tools

Plumbing calculators

Eleven tools for a plumbing problem, a water heater decision or a bid. Each shows its arithmetic and sources; none asks for an email.

9,300+ gal a year from the average household’s leaks EPA WaterSense, Fix a Leak Week, retrieved September 5, 2026: “The average household’s leaks can account for more than 9,300 gallons of water wasted every year.”

Pick the tool by the problem in front of you. Something wrong now: the emergency check, leak cost, sewer or water heater repair tools. A decision: water heater sizing, tank vs tankless, fixture units or water usage. Your pipes and water: pipe material, repipe cost and hardness.

If water, gas or sewage is a problem right now

Gas smell. Leave the building. Do not use switches or phones inside. Call 911 and the gas utility from outside.

Water coming in. Close the main shut-off. Keep away from water near outlets or the electrical panel.

Sewage backing up. Stop using all water and keep people and pets away.

Something is wrong now

Water where it should not be, a backup or a failed heater.

Is this a plumbing emergency?Safety first: gas, electricity and sewage, then whether it can wait for morning.Open the tool Leak cost calculatorGallons a day × 365 × the rate on your water bill.Open the tool Sewer repair vs replaceThe camera finding, your backup history and two bids.Open the tool Water heater repair vs replaceA leaking tank is a replacement. Otherwise, two bids and the tank warranty.Open the tool

Sizing and choosing

How much hot water, which heater, what pipe size, how much water.

Water heater sizing calculatorYour busiest hour of hot water against the first-hour rating label.Open the tool Tank vs tankless paybackExtra installed cost ÷ yearly energy saving, from your bids and bills.Open the tool Fixture unit calculatorYour code’s fixture-unit total to probable demand and a minimum pipe bore.Open the tool Water usage calculatorShowers, flushes and fixture flow rates to gallons a day.Open the tool

Your pipes and your water

What the pipes are, what replacing them costs, and what is in the water.

Pipe material by year builtWhat to look for in a house of your age, and how to confirm it.Open the tool Repipe cost estimatorLinear feet × the rate on your bid, plus opening and patching walls.Open the tool Water hardness calculatorYour water report’s figure, in grains or mg/L, on the USGS classes.Open the tool

Which tool answers which question

Tool	The question it answers	What it will not do
Is this a plumbing emergency?	Does this need help now, or can it wait?	Send anyone. HyrePlumber answers no emergency calls.
Leak cost calculator	What is this leak costing me a year?	Find the leak or price the damage.
Sewer repair vs replace	What does the camera finding point to?	Diagnose your line or say who owns it.
Water heater repair vs replace	Is it a part, or the tank?	Price the repair.
Water heater sizing	What first-hour rating do I need?	Size a tankless heater.
Tank vs tankless payback	Does tankless pay back on my figures?	Assume a savings percentage.
Fixture unit calculator	What demand and bore does my total imply?	Hold a code table or size drains.
Water usage calculator	Where do my gallons go?	Read your meter.
Pipe material by year built	What should I look for?	Tell you what is in your walls.
Repipe cost estimator	Does this bid add up?	Publish a national repipe price.
Water hardness calculator	Is my water soft or hard?	Guess from a ZIP code or prescribe a softener.

How these tools work

The arithmetic is on the page
Each tool states its formula and the source of any fixed figure.
Nothing is stored or emailed
The tools run in your browser. No email is asked for.
No invented prices
HyrePlumber holds no dataset of plumbing bids, so price boxes start at 0 for the figures on your own bids.
We say what we could not verify
The tankless savings percentage quoted across the trade is not printed here: we could not read it at its source.
Not a diagnosis or a design
HyrePlumber does no plumbing work. A licensed plumber and your adopted code decide the job.

Questions about these tools

Are these plumbing calculators free?: Yes. Every tool runs in your browser, shows its arithmetic and asks for no email. Nothing you type is stored.
Why do the cost tools start at $0?: HyrePlumber holds no dataset of plumbing prices, so a default would be a number with nothing behind it. Type the figures from your own bids.
How much water do household leaks waste?: EPA WaterSense: “The average household’s leaks can account for more than 9,300 gallons of water wasted every year.” A faucet dripping once a second can waste more than 3,000 gallons a year.
What temperature should my water heater be?: CPSC urges 120°F against scalds; CDC advises storing hot water above 140°F against Legionella. A thermostatic mixing valve delivers tempered water from a hotter tank.
Do I have a lead service line?: Ask your water system. EPA requires systems to publish their service line inventory, and new lead pipe was banned in 1986.
Is hard water a health problem?: EPA sets no limit for hardness. It is a scale and soap question. USGS classes water above 120 mg/L (about 7 grains per gallon, at 17.1 mg/L per grain) as hard.
Does HyrePlumber do plumbing work?: No. HyrePlumber does no repairs or installations and sends no plumbers. The tools help you understand a problem or a bid.

Sources and methodology

Figures dated September 5, 2026. Last reviewed August 16, 2026.

Fix a Leak Week (US Environmental Protection Agency, WaterSense, retrieved September 5, 2026). Household leak figures.
Lead and Copper Rule Improvements, general public fact sheet (October 2024) (US Environmental Protection Agency, retrieved September 5, 2026). The 1986 ban and public service line inventories.
Tap Water Scalds (CPSC Publication 5098) (US Consumer Product Safety Commission, retrieved September 5, 2026). The 120°F recommendation.
Monitoring Building Water (US Centers for Disease Control and Prevention, retrieved September 5, 2026). Storage above 140°F and mixing valves.
Hardness of water (US Geological Survey, Water Science School, retrieved August 26, 2026). The hardness classes.

Plumbing services What each kind of job involves and how to read its bid.
What plumbing work costs What moves a plumbing bill.
Plumbing emergencies What to do first, and what an emergency visit costs.
Choosing a plumber What to check before you hire.
Editorial policy How we source and date every figure.

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