Work out the numbers
Free Contractor Calculators and Estimate Tools
Use a calculator to check an assumption, then review the result against the job. Tools show their units, inputs and limitations so you can see how the numbers were worked out.
BTU Calculator for Room Air Conditioner Planning
Use the BTU calculator for a room AC estimate in square feet. Apply sun, occupancy and kitchen adjustments, then review the chart assumptions and limits.
Lead Cost Calculator for US Contractor Inquiries
Use the lead cost calculator to compare net charges, fees and follow-up costs with paid jobs. Select US provider guidance and enter your actual account figures.
Roof Pitch Calculator
Use the roof pitch calculator for rise per 12 inches, angle, slope percentage and simple sloped area. See the formula and limits. No signup or email needed.
Markup Calculator
Use the markup calculator to convert cost into selling price or target gross margin. Add sales tax with your own taxable amount and rate. No signup needed.
Contractor Hourly Rate Calculator
Use the contractor hourly rate calculator to plan compensation, overhead, reserves and billable hours. See the required revenue and assumptions. No signup.
Contractor Estimate Template
Use the contractor estimate template to add scope, line items and sales tax, then download a PDF or CSV. Keep customer details in your browser. No signup.
Work Order Template
Use this work order template to record job instructions, assigned crew, dates, materials and completion notes. Download a PDF or line-item CSV. No signup.
Contractor Invoice Template
Create a contractor invoice with job details, line items, dates, tax and payments already received. Download a PDF or line-item CSV in your browser. No signup.
Hip Roof Calculator for a Simple Rectangular Roof
Use the hip roof calculator for a simple equal-pitch rectangular roof. Estimate surface area, ridge and slope distances in feet, with explicit model limits.
Brick Calculator for a Single-Wythe Wall Face
Use the brick calculator for a single-wythe wall face. Enter feet, actual brick dimensions, joints and openings, then review whole-brick counts and allowance.
Mortar Calculator for Brickwork Bag Planning
Use the mortar calculator to estimate bags from bricks laid and product coverage. Enter an extra allowance and check the actual mix and project details.
Concrete Calculator for Volume, Cubic Yards and Bags
Use the concrete calculator for slabs, round columns and tubes. Enter feet and inches, select a product yield and estimate cubic yards and whole bags to buy.
Paint Calculator for Surface Area, Coats and US Gallons
Use the paint calculator for room walls or entered surface area. Subtract openings, add coats and your allowance, then estimate US gallons from label coverage.
Drywall Calculator for Area-Based Sheet Planning
Use the drywall calculator for room walls and ceilings or entered area. Choose sheet size, layers and allowance to estimate whole sheets, with clear limits.
Deck Calculator for Straight Surface Board Quantities
Use the deck calculator for a rectangular surface with straight board rows. Enter actual board width, gap and stock length to estimate whole boards and extras.
Gravel Calculator for Volume and Supplier-Based Weight
Use the gravel calculator for rectangular or circular areas. Enter depth and allowance for cubic yards, then add supplier density for pounds and US short tons.
2026 Self-Employment Tax Calculator
Estimate ordinary 2026 self-employment tax from net profit and your Social Security wages. Excludes Additional Medicare and income tax. Check it with a CPA.
Start with a website plan
Tell us your trade, service area and what needs to change. We will set out the next step by email or over a booked video call.
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