Free calculators
Work out the numbers the job is actually made of
Pricing, profit, drive time and materials. Type your own figures, get an answer and a plain-English read on what it means. No signup, no email, nothing to install.
Every calculation runs in your browser. The figures you type are never sent to us, and they are never attached to anything we measure.
- Pricing and Profit7
- Jobs and Materials7
- Business Health3
- HVAC and Airflow6
- Plumbing and Water2
- Roofing and Exterior2
Pricing and Profit
What the work should cost, what it actually made, and where the difference went.
- Job ProfitabilitySee whether a finished job made the profit you priced it to make.Open the calculator
- True Hourly RateFind the hourly rate that covers your pay, your overhead and your margin.Open the calculator
- Markup vs MarginConvert markup to margin and back, and see the price and profit behind both.Open the calculator
- Discount ImpactSee what a price cut takes off your profit and how much more work replaces it.Open the calculator
- Job Price BuilderTurn hours, materials and your target margin into the price to quote.Open the calculator
- Lawn Care PricingPrice a recurring lawn property per visit and across the season.Open the calculator
- House Cleaning PricingPrice a recurring clean and the first deep clean, and check the hour behind both.Open the calculator
Jobs and Materials
The workload behind a revenue target, and the quantities behind a job.
- Revenue GoalTurn a yearly revenue target into jobs and quotes a week.Open the calculator
- Drive Cost per JobSee what the drive to a job costs you, per job and per year.Open the calculator
- Pipe & Tank VolumeHow much a pipe run or a tank holds, in five units, including a horizontal tank that is only part full.Open the calculator
- Material QuantityConcrete, paint, drywall and tile quantities from your own measurements and your own coverage figures.Open the calculator
- Flooring MaterialRoom measurements to boxes of flooring, with the leftover in the last box read back to you.Open the calculator
- Board FootBoard feet and lumber cost for a cut list, with nominal and actual sizes kept apart.Open the calculator
- Brick and MortarBricks and mortar for a wall, derived from your own brick face and joint rather than a chart.Open the calculator
Business Health
What the business is worth, what it can afford to take on, and what is leaking out of the week.
- Business ValuationWork out seller's discretionary earnings and the range your multiple puts on them.Open the calculator
- Hire Break-EvenSee how many jobs a week one more person has to finish to pay for themselves.Open the calculator
- Missed Work CostPrice the calls, quotes and paid hours that leak out of a normal week.Open the calculator
HVAC and Airflow
Air, ducts and equipment capacity, sized from the figures on the job — not from a table of assumptions.
- HVAC CFMTurn a room measurement and an air-change target into the CFM that room needs.Open the calculator
- Duct SizeSize round or rectangular duct from the airflow it carries and your target velocity.Open the calculator
- Air Changes per HourCheck how often a room the system already serves actually replaces its air, in changes per hour.Open the calculator
- HVAC LoadTurn a design load figure you already have into BTU/h, tons and kilowatts, and see which equipment sizes it lands between.Open the calculator
- Refrigeration BTUCooling load on a walk-in or reach-in box, from panel area, temperature spread and R-value.Open the calculator
- Efficiency Upgrade SavingsWhat a higher-rated unit saves per year, and how long the upgrade takes to pay for itself.Open the calculator
Plumbing and Water
What a run carries, how fast it moves and how far it travels when the temperature changes.
Roofing and Exterior
Pitch, real sloped area, and the squares of material that area actually takes.
What these are for
A calculator answers one job. Zeus answers all of them.
Zeus is a job app for solo trades and small crews. Every address keeps its own record: past visits, photos, quotes, invoices, payments and hours. The figures these calculators ask you to remember are already written down. It works with no signal and syncs when you get some.
Free plan, no card, and it does not expire.
ZEUS