The easiest way to
embed a calculator
on your website.
Pick from a massive library of ready-made calculators and converters, or build your own with AI. Style it to match your brand and embed with one line of code. Live on any platform in under 60 seconds.
Pick from 2,400+ calculators, or build your own with AI.
I run a blog in the pet niche with 50k/mo pageviews. Build me a revenue calculator
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Why Add a Calculator?
No More Bouncing
Most visitors skim a page and leave without doing anything. A calculator gives them a reason to stop, interact, and stick around.
No More Guessing
A contact form gets ignored. Gate the calculator's result behind an email, and every visitor who uses it becomes a real lead.
No More Vague Pitches
A vague price range doesn't move anyone. Show visitors their own mortgage payment, their own ROI, their own savings, and they act on it.
“ChatGPT gives you code. Lovable gives you an app. We give you a widget that's live on your site in 60 seconds, with analytics, lead capture, and CRM built in, all from $1 only.”
Calcupedia | /  ChatGPT / Claude |  Lovable | Calculator sites | Hire a dev | |
|---|---|---|---|---|---|
| View & impression tracking | ✓Built in | ✗None | ✗None | ✗None | ~Custom build/high rates |
| Completion rate tracking | ✓Built in | ✗None | ✗None | ✗None | ~Custom build/high rates |
| Lead capture from the widget | ✓Gate results behind email capture | ✗None | ✗None | ✗None | ~Custom build/high rates |
| CRM integration | ✓HubSpot, Mailchimp, Zapier & more | ✗None | ✗None | ✗None | ~Custom build/high rates |
| Webhook support | ✓Push lead data anywhere | ✗None | ✗None | ✗None | ~Custom build/high rates |
Calculator library
2,414 free calculators and converters
Explore, calculate, or embed any of them on your website, no code required.
0-60 MPH Calculator
Estimates the 0-60 mph acceleration time from its weight, power, and drivetrain, using a kinetic-energy physics model.
Open calculator →10/1 ARM Calculator
Calculate your monthly payment on a 10/1 Adjustable Rate Mortgage during the fixed period and the maximum payment once the rate adjusts to its cap.
Open calculator →100 Days From a Date Calculator
Finds the exact calendar date that is 100 days before or after a date you choose.
Open calculator →12-Hour Shift Pay Calculator
Calculate your pay for a 12-hour shift, including overtime, and project it across a week, month, and year.
Open calculator →120 Days From a Date Calculator
Finds the exact calendar date that is 120 days before or after a date you choose.
Open calculator →180 Days From a Date Calculator
Finds the exact calendar date that is 180 days before or after a date you choose.
Open calculator →28/36 Rule Calculator
Check your mortgage affordability against the 28/36 rule -- housing costs under 28% of income, total debt under 36%.
Open calculator →2D Distance Calculator
Find the distance between two points in 2D space.
Open calculator →30 Days From a Date Calculator
Finds the exact calendar date that is 30 days before or after a date you choose.
Open calculator →30 Min Calculator
Adds together several time durations to get a combined total.
Open calculator →3D Printer Buy vs. Outsource Calculator
Compare the cost of buying a 3D printer and printing your own models versus outsourcing to a printing service.
Open calculator →3x Rent Calculator
Calculate the income needed to afford rent using the common 3x-rent income rule.
Open calculator →401(k) Contribution Optimizer
Calculate your total annual 401(k) contribution including employer match.
Open calculator →403(b) Retirement Calculator
Project your 403(b) retirement account balance from your current balance, contributions, employer match, and expected investment growth.
Open calculator →45 Days From a Date Calculator
Finds the exact calendar date that is 45 days before or after a date you choose.
Open calculator →Browse all 2,414 calculatorsCouldn't find a calculator that fits your needs?
Create Your Own With AI
Describe the calculator you need, and Calcupedia generates the inputs, the formula, a responsive layout, and an embed snippet, all in seconds. No code, no insane overhead, no hassle.
Try the AI Builder →Calcupedia AI Calculator Builder
PreviewPrompt
Embed Anywhere
Code-first or no-code, it just works on all platforms.
Built By Someone Who Gets It
I'm Odeh Ahwal
A serial internet solopreneur with a 10x exit track record.
Why I built Calcupedia
Almost every site I've ever built needed some kind of calculator, and every time meant the same three bad options: hunt for a plugin, hire a dev for something a visitor uses once, or skip it. Calcupedia exists so nobody has to make that trade-off again. Pick a calculator, paste one line of code, done. I built the tool I wish existed for the last decade of building things on the internet.
Simple and Transparent Pricing
Every calculator is free to use, and free to embed on your own site. Upgrade when you need more embeds, lead capture, or full branding control.
Free
Embed one calculator on your website for free.
- ✓1 active embed
- ✓2,400+ calculator templates
- ✓Full styling & theme customization
- ✓Analytics dashboard
- ✓Powered by Calcupedia branding
Growth
Scale past one embed — pay only for what you use.
- ✓Everything in Free, plus:
- ✓Unlimited embeds — $1/mo each, no badge required
- ✓Analytics dashboard
Creator
Everything you need to grow with embedded calculators.
- ✓Everything in Growth, plus:
- ✓Remove Calcupedia branding
- ✓Lead generation forms
- ✓Webhook / CRM data integrations
- ✓AI Calculator Creator (SOON)
Agency
For teams managing calculators across multiple clients.
- ✓Everything in Creator, plus:
- ✓White label (your brand)
- ✓Client management
- ✓Team member access
- ✓Export / import calculators
- ✓Priority support
Join 3 people already on Calcupedia
Frequently asked questions
You have three real options: build it yourself with an AI tool like ChatGPT or Claude, which gives you code you still have to implement, test, and maintain; hire a web developer, which works but usually costs hundreds of dollars and takes days or weeks to finish; or pick from Calcupedia's library of free calculators and converters and paste one line of code, live on your site in under 60 seconds. For most site owners, Calcupedia ends up the fastest, cheapest, and easiest of the three.
Yes. Embeds work anywhere you can paste an iframe or script tag: WordPress, Webflow, Squarespace, Wix, Shopify, a hand-coded site, or a React/Next.js app. There's no plugin to install and nothing to keep updated.
No. Pick a calculator, customize it in a live preview, and copy one snippet. That's the whole process. If you can paste code into your site, you're done.
Yes. The embed customizer shows a live preview as you adjust colors, fields, and behavior, so you see exactly what visitors will see before you copy the code.
Describe what you need in a sentence, and Calcupedia's AI builder generates a working calculator for you, including inputs, formula, and results panel.
As many as you want. Growth is $1/mo per active embed; Creator and Agency include unlimited embeds in the flat monthly price.
You do. Lead capture is opt-in per embed, and every submission goes straight to your dashboard. Calcupedia never sells or reuses your visitors' data.
No. Lead capture is included in the Creator and Agency plans at no extra per-lead cost, unlike most embed tools that meter you per submission.
No. Anyone can use an embedded calculator with no signup. Only you, the site owner, need an account to create and manage it.
The embed loads in an iframe, so it never blocks your page's own content from rendering. Because it's an iframe, its content isn't crawled as part of your page, but the calculator already has its own indexed, SEO-optimized page on Calcupedia, so you're not losing anything by embedding instead of building your own.
Yes, on the Creator plan and above. Free and Growth embeds show a small "Powered by Calcupedia" badge; Creator removes it, and Agency adds full white-label branding.
Yes, on the Agency plan. You get client management, team member access, and white-label branding, so each client's embed can carry your (or their) brand, not Calcupedia's.
Your embeds keep working until the end of your current billing period, then automatically revert to the Free plan's limits: one active embed, Calcupedia branding on. Nothing gets deleted.
Your next 10 leads are
one calculator away.
Free forever for one embed, not a trial. Pick from 2,400+ calculators
or build your own with AI, no strings attached.
Join 3 people already on Calcupedia