Free Tool
Pressure Washing Square Footage Calculator
Add each surface, set your per-square-foot rate, and get a clean total and estimate you can read off to the customer.
Most pressure washing quotes start with one number: square footage. Measure each surface as length times width, add them up, and multiply by your per-square-foot rate for a fast, defensible estimate you can read off to the customer.
Add a row for every area - driveway, walks, patio, pool deck - and the calculator totals the area and the estimate as you type. Treat the per-foot number as a starting point: adjust up for condition (first-ever cleans, oxidation, rust) and confirm the price clears your cost floor.
Frequently asked questions
- How do I measure square footage for a pressure washing quote?
- Measure each surface’s length and width in feet and multiply for its area, then add the surfaces together. For a 40×20 driveway that is 800 sq ft. A wheel or a satellite map tool works for measuring; this calculator handles the totals and the estimate.
- What is the average price per square foot for pressure washing?
- Published 2026 ranges put many residential jobs around $250–$400 total, but a per-square-foot rate has to clear your own cost floor, which depends on local wages, drive distance, and chemicals. Use a rate that works for your costs, not a number from another market.
- Should I price by the square foot or by the job?
- Use square footage to build a confident number, then present one flat project price. Per-square-foot pricing alone ignores condition and access, so adjust for those before you quote. Customers prefer a clear project price to an open-ended rate.
Keep the math with the work
WashRoute Pro keeps your owner-entered assumptions with quotes and scheduled work so you can review the price, customer contact, and schedule before anything goes out.
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