Build a one-page quote calculator
Have an AI assistant build a simple quote calculator you open in your browser: pick the job, enter a few numbers, and get a clean price you can copy into a text or email. It takes about five minutes.
The problem: Quoting the same kinds of jobs by hand, with a calculator and a notepad, is slow and easy to get slightly different every time.
How to do it
- List your common jobs. Write down three to five jobs you quote often and how you price each one: a flat fee, a rate per hour, per square foot, or per unit.
- Add your extras. Note the add-ons and rules you always apply, such as a trip charge, a minimum job price, materials markup and sales tax.
- Ask for one HTML file. Ask the assistant for a single HTML file with no outside services, so it runs offline on your computer or phone and nothing leaves your device.
- Test it with a real job. Open the file in your browser and price a job you quoted last week. If the number doesn't match, tell the assistant exactly what's off.
- Save it where you work. Keep the file on your desktop or phone, and ask for changes whenever your prices change.
Example prompt
Build me a quote calculator as one HTML file I can open in my browser, with no outside services. My jobs: AC tune-up is $129 flat, drain cleaning is $95 for the first hour and $65 for each extra hour, and water heater install is $1,450 plus materials. Add a $35 trip charge for jobs more than 20 miles away, a 15% markup on materials, and 8.25% sales tax on materials only. Show the total line by line, with a Copy button for a short, friendly quote I can text.
Why it works: Five minutes of setup, and every quote comes out the same way, in seconds, even from your phone between jobs.
Works with: Any AI chat or coding assistant (ChatGPT, Claude, Gemini, Claude Code, Codex, Cursor...).