The Contractor's Job-Sheet Calculation Companion
Labor and materials with a markup, area or volume for the materials line, and a per-job total: type them the way you would sketch them on a job sheet and read the answers next to each line.
Built for contractors
Labor + Materials + Markup
Define `labor hours = 24` and `hourly rate = 65 USD`, add `materials`, then take a markup with `subtotal + 18%`. Every input has a name; edit one and the quote updates in place.
Trade Unit Conversions
Move between imperial and metric on the fly: type `320 sq ft to sq m` for a flooring order, `4 cubic yards to cubic meters` for a concrete pour, or `12 feet to meters` for a wall run.
Markup, Tax, Contingency
Percentages read naturally in a quote: `subtotal + 18%` for markup, `+ 8% tax` on top, or `+ 10%` for a contingency line. Each stays on its own row so the client can read every step.
One Tab Per Project
With Lifetime, keep every job's estimate on its own tab. Rename tabs by address or trade so a change order does not overwrite yesterday's site-visit numbers.
See It in Action
Job estimate
labor hours = 24
hourly rate = 65 USD
materials = 1250 USD
subtotal = labor hours * hourly rate + materials
final quote = subtotal + 18%Materials from area
room length = 18
room width = 22
cost per sqft = 4.5 USD
flooring cost = room length * room width * cost per sqftChange order
extra hours = 6
extra rate = 65 USD
added materials = 240 USD
change order = extra hours * extra rate + added materialsStart calculating smarter, contractors.
Notes Calculator is free to start, runs in your browser, and works on every desktop. Upgrade later for sync and unlimited tabs.
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