Tool index · 16 tools
Every tool, by job
Price the work, write it up, size the equipment. Free, no account needed — and nothing is saved unless you press Save. Each tool shows its math and names its sources.
Pricing 7 tools
- PR-01Labor rate calculatorThe hourly rate that covers wages, labor burden, overhead and the profit you want — with the break-even rate marked.
- PR-02Markup vs margin calculatorConverts markup to gross margin and back, and prices a job from its cost for the margin you want.
- PR-03Job cost and profit calculatorAdds materials, labor, overhead, subs and fees into the true cost of one job, then shows its profit and margin.
- PR-04Truck cost per hour calculatorWhat a service vehicle costs per year, per mile and per billable hour, from payment, insurance, fuel and upkeep.
- PR-05Flat-rate task price calculatorTurns a task’s standard time, your hourly rate and its parts into one up-front price, with a callback allowance.
- PR-06Service call fee calculatorWhat a trip to the customer costs you in drive time and truck cost, and the call fee that covers it.
- PR-07Price book builderYour tasks, hours, parts and rate into a flat-rate price book, with good/better/best options, customer and tech PDFs and CSV files for Jobber and Housecall Pro.
Estimates & invoices 2 tools
Sizing 7 tools
Plumbing
- SZ-01Pipe volume calculatorGallons and liters in a run of copper, PEX, PVC, CPVC or steel pipe, from the real inside diameter of each size.
- SZ-02Water heater size calculatorThe first-hour rating a tank needs for the busiest hour, or the flow and temperature rise a tankless unit must handle.
- SZ-03Water flow and velocity calculatorVelocity and friction loss for a flow in a given pipe, checked against common velocity limits.
HVAC
Software 5 guides
- 5.01Cheapest Way to Estimate and Invoice: One-Truck Yearly CostYearly cost to send estimates and invoices from a one-truck shop with QuickBooks, Jobber, Joist and Invoice Simple, card fees included, October 2026.
- 5.02Field Service Software Contract Terms: Renewal and ExitWhat Jobber, Housecall Pro, Service Fusion, Workiz, FieldEdge and ServiceTitan publish about auto-renewal, notice, exit fees and price increases.
- 5.03Field Service Software for Small Plumbing Shops (2026)Eight field service apps for 1-5 tech plumbing shops: prices, seat rules, card rates and contract terms as published October 4, 2026, and who each fits.
- 5.04Jobber vs Housecall Pro: Yearly Cost for 1, 3 and 8 PeopleJobber and Housecall Pro prices as of October 4, 2026, with yearly cost for 1-, 3- and 8-person shops including card fees, worked out line by line.
- 5.05ServiceTitan Pricing: What Is Public and What Is Not (2026)What ServiceTitan publishes, what its SEC filings say about contracts and onboarding, third-party price ranges labeled as such, and demo questions.
Plain comparisons built from public pricing and documentation, dated.
What the tools do, and what they don’t
Every tool is free, works without an account and runs in your browser: the numbers, names and prices you type are sent to this site and stored only if you press Save. The estimate and invoice generators can remember your own business details on your device, but only if you ask them to.
Each tool states its formula and its assumptions, names the source of any figure it uses, and says where a value is the site’s own arithmetic or a rule of thumb. The arithmetic is covered by automated tests.
The pricing tools show the math, not a verdict: they can’t see your books, your market or your tax situation. The sizing tools give planning estimates; the code your jurisdiction enforces and the equipment maker’s instructions decide what gets installed. The guides explain the reasoning behind each one.