Describe the form in ChatGPT, and CalcForms builds and hosts it. Unlimited forms, unlimited submissions, every calculation live as your customer types, free.
You never leave ChatGPT. Paste a spreadsheet, get a link, change anything by asking. Works in Claude too.
Whatever you already calculate in a spreadsheet, you can ship as a form.
Stop attaching the Excel ROI model to every prospect email. Stop building one-off quotes in spreadsheets.
Build: ROI calculator · quote configurator · savings projector
Self-serve qualification before the first call. Branded, on your site, capturing the lead.
Build: mortgage payment · refinance · rent vs buy · closing cost
Stop DM'ing screenshots of a Numbers file. Send one link.
Build: TDEE · macro split · body recomp · plan price
Quote on the call instead of "I'll send a proposal." Close before they shop you.
Build: project scope · retainer tiers · hourly vs flat
Cut quote turnaround from 3 to 7 days to under a minute. Capture the lead before they call the next guy.
Build: install estimate · energy savings · materials sizing
Higher conversion than static landing pages. Interactive content that captures intent.
Build: "how much could you save" · cost calculator · impact estimator
Quote on the spot. Headcount × menu tier × AV × room. Every combo, every add-on, priced in seconds.
Build: event package · headcount + menu tier · venue + catering combo
Say "match my website" and ChatGPT restyles the whole form: colors, fonts, spacing, depth. No design work, no code, and you can undo it anytime.
FontsColorsSpacingDepthField styleDark modeAccent barButton textEvery style option is checked by us, so your form can look like your site and can never break. Try it: build your form and add “brand it like my website.”
When a customer submits, you don't get raw inputs to plug into your spreadsheet. You get the calculated result: subtotal, tax, total, payback, monthly payment, whatever your formulas compute, already done. Stop running the spreadsheet on every lead.
By default, the form shows the customer no calculated results. Choose which calculations the customer sees as they fill the form in.
Show them the total, monthly payment, or payback. Your margin, cost basis and broker commission are never shown on the form. One toggle per field.
Bonus: when customers see the answer they're calculating, they convert at ~17× the rate of static contact forms (47.3% vs 2.8%, per Outgrow's 2025 benchmark of 50,000+ forms).
No drag-and-drop builder. No code. No second tool to learn.
One click on the CalcForms app page, then sign in with your email (we send a 6-digit code). A free ChatGPT account works.
Paste your spreadsheet, or just say "build me a quote calculator." ChatGPT builds the form and gives you a link.
Send the link to customers. They fill it in and see their number. Every reply is saved with the math done. Read it in ChatGPT, or in the web portal on Pro. Want a change? Just ask: "make the discount 15%." Same link.
Here is exactly what you can do with CalcForms. No developer needed for any of it.
Describe the form or paste your spreadsheet. It's live in minutes.
Your sheet's formulas work as they do in the sheet. A function CalcForms does not have is named when the form is built, not guessed.
Your pricing grid comes along, so the form looks up the right rate on its own.
Rooms, products, properties: customers add rows and the form adds them up.
Email it, text it, post it, or put a button on your site.
Send a personal link to one customer, and take it back whenever you like.
Half-finished? They get a link by email to pick up right where they left off.
They get a copy of what they sent. You get it with the math already done.
Say "raise the Office rate to $1.20" and the live form updates. Same link.
Ask about solar panels only if they own the roof.
Test the form with your own past quotes before it goes live.
Change one input on a past reply and see the new result.
Customers see their total. Your margin, cost basis and every other calculation are shown only to you: in ChatGPT, in your email copy of each reply and in your exports.
Each submission is saved with all the calculations worked out, readable from the chat.
Export your submissions from the chat as CSV. Excel and PDF quotes come with the web portal.
Each submission becomes a clean page you can share or save as a PDF, in the web portal.
One click in ChatGPT. Works in Claude too. Either way, you sign in once with your email and you're set.
Calcforms as the Name and paste this address into the URL field, then click Add.
Everything in ChatGPT is free. The web portal is Pro.
On the roadmap: team seats, a phone app for quoting.
CalcForms is an official ChatGPT app, and works in Claude too. Your spreadsheet stays in your own ChatGPT or Claude account; we only receive the finished form. Customer replies are saved in CalcForms; read and export them from ChatGPT, or in the web portal on Pro. We don't sell your data. We don't train AI on it.
IF, INDEX/MATCH, XLOOKUP, PMT, lookup tables, nested logic, percentages, date math. Paste the file into ChatGPT and ask for the form.30 minutes on a screen-share. No pitch; we open your spreadsheet together and make your form. Fill this in and pick a time.
We've got your details. Choose a slot that suits you and we'll send a calendar invite with the video link.
Choose a time →Browse all 30 calculator templates. Each shows a live working form, the example math, and the exact words to say to ChatGPT to build it with your own pricing.
Switching from another tool? See how CalcForms compares as a Typeform alternative, Jotform alternative, or browse all comparisons. Or read the industry walk-throughs.
Paste your spreadsheet into ChatGPT. Get a link. Share it. Done.
Add to ChatGPT, free →