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🔨 For general contractors and remodelers

Contractor quote calculator for general contractors, built by chatting with Claude

This contractor quote calculator gives homeowners a starting price from the type of project, its size, and the finish level they want. A real ballpark up front means more of them book the walkthrough. You build it by chatting with Claude, your real pricing stays private behind the scenes, and your first form is free.

Build yours free →Try the live calculator ↓

Try it yourself

This is a real, working CalcForms calculator embedded right on the page. Enter your details and watch the estimate update on the spot. It is exactly what your customers would use, and every submission lands in your dashboard as a lead.

forms.badabingapp.cc/contractor-quote-calculator

What it calculates

Why it closes more deals

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A live number closes deals

Customers who see a real estimate the second they enter their details are far likelier to book than ones told to call for a quote. The number is the hook.

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Runs your most complex spreadsheet

Multi-tab workbooks, lookup tables, tiered rates, conditional line items, the lot. If the math runs in Excel, CalcForms runs it behind a clean form.

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Update it by chatting

Prices move. Ask Claude to change a rate, add an option, or insert a step and the live form updates in seconds. No developer, no redeploy.

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Backtest before you publish

Run your last 20 real jobs through it and tune the formula until the live estimate matches what you actually charge. Ship it once it lines up.

Why calculator forms convert — by the numbers

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47.3% vs 2.8%

In an analysis of 50,000+ forms, interactive forms averaged a 47.3% conversion rate versus 2.8% for static forms. (Outgrow)

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2× conversions

Interactive content generates roughly twice as many conversions as static content. (Content Marketing Institute)

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51% of buyers

51% of B2B software buyers now begin their research in an AI chatbot rather than a search engine. (G2, 2026)

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1 in 3

A third of B2B buyers have chosen a vendor they had never heard of before, on an AI assistant's recommendation. (G2, 2026)

How this form was built

No template builder and no code. One message to Claude with the CalcForms connector switched on:

✦ Claude with the CalcForms connector
Build a contractor quote calculator for homeowners. Inputs: project type, size, finish level, and timing. Map project type and size to a typical square footage, price per square foot at the chosen finish level from your numbers, adjust for timing, and show a starting price.
Done. I built Contractor Quote Calculator with your pricing and deployed it to forms.badabingapp.cc. The math runs server-side and every submission is saved with the inputs and email. Want to add a field or change a rate? Just tell me.

Build this exact form

CalcForms is a connector you add to Claude once. After that you build and edit forms just by chatting.

  1. Add CalcForms to Claude. Open the Add custom connector dialog, name it Calcforms, and paste https://forms.badabingapp.cc. One time, about 60 seconds.
  2. Paste the prompt below. Claude builds the form, wires in your math, and hands you a live URL.
  3. Share it, then tweak by chatting. Put it on your site or send the link. Change a rate or add a field later just by asking.
Copy this prompt into Claude

"Build a contractor quote calculator for homeowners. Inputs: project type, size, finish level, and timing. Map project type and size to a typical square footage, price per square foot at the chosen finish level from your numbers, adjust for timing, and show a starting price."

Example run: Mid-range bathroom, medium size, starting in 1 to 3 months: starts around $18,000.

New to connectors? A connector (an MCP server) is a secure link between Claude and an app. The CalcForms connector lets Claude build, deploy, and update real calculator forms for you, all from the chat window.

What it works out

FAQ

Will my real Excel estimating workbook come across?
Yes. Paste your spreadsheet into Claude and your real pricing formulas stay intact, including a multi-tab workbook with separate trade sheets feeding a summary.
Can I keep my unit costs and margin private?
Yes. Every calculated field stays internal by default. You choose per field what the customer sees, so the range shows and your base rates and OH&P do not.
Can I update pricing when material costs jump?
Yes. Ask Claude to update the rates or edit the rate tab in your spreadsheet. The form changes in seconds and the URL stays the same.
How do I know the numbers are right?
Backtest it against your historical quotes. Run past jobs through the form and confirm the estimate lands where you actually bid before you publish.

Build yours in the next 10 minutes.

Your first form is free. No credit card.

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