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Choose the calculators you want, match them to your brand, and copy one embed snippet into your site. It works as an inline calculator, a popup or a floating button, on plain HTML pages and on common website builders. Leads from an optional contact form go to a built-in CRM and, on higher plans, to webhooks.
Set your colors and choose from several themes so the calculators look like part of your site, not a bolt-on.
Place a calculator inline on a page, open it in a popup from a button, or keep it one tap away with a floating button. One snippet covers each.
An optional form lets visitors send you their details along with their calculator inputs and results. Leads land in a built-in CRM you can work from.
Send each lead to your CRM, email marketing or automation tool as it arrives. Webhooks are included on the Branch and Institution plans.
On higher plans, serve calculators from your own domain with your branding and no mention of ours.
Calculator text is available in English and Spanish, so you can serve both audiences.
Step by step
Choose from the calculator categories your plan includes, such as loans, auto, credit and debt, savings and personal finance.
Set colors and a theme, and decide whether to show lead capture and in which language.
Copy one embed snippet for an inline calculator, a popup or a floating button.
Add it to any page that accepts custom HTML. Our embed guide covers common website builders step by step.
Work leads in the built-in CRM, get email notifications, or send them to your own tools by webhook.
Plans
There are three plans. Community lets you try a few loan and amortization calculators on your own site. Branch adds your branding, your own domains, many more calculators across auto, credit and debt, savings and personal finance, and lead webhooks. Institution includes every calculator category with unlimited seats, domains and leads.
The table below shows each plan's current limits, billing options and any free trial. Business plans are separate from the consumer site, which stays free for everyone.
Try embedding a few calculators on your own site.
$0 forever$0 foreverNot offered
Your branding, 50 calculators and lead webhooks.
$150/mo$1,500/yr$2,997 once
14-day free trial on monthly and yearly
Every calculator, unlimited seats, domains and leads.
$210/mo$2,100/yr$4,997 once
14-day free trial on monthly and yearly
Prices in US dollars. Cancel any time; yearly and lifetime purchases can be refunded within 14 days on the terms shown at checkout. The consumer calculators on this site stay free whatever you choose.
Live example
This is the same car loan calculator our readers use, styled to this site’s palette. On your site it takes your colours, fonts and — on paid plans — your lead form and branding.
<!-- Illustrative: your exact snippet is generated in your dashboard --> <div data-calculator="car-loan" data-key="YOUR_KEY"></div> <script src="https://app.calculateinterestpay.com/embed.js" async></script>Step-by-step embed guide
Business customers license the calculators. They never buy influence over what our consumer pages say.
Yes. The consumer site stays free for everyone, and business plans do not change that. Business revenue helps pay for the free site, but business customers have no say over our consumer content, guides or calculator results. Our editorial policy sets out how that separation works.
You do. Leads collected through calculators on your website belong to your business. They appear in your built-in CRM and, on plans with webhooks, are sent to the tools you choose. We do not sell or share your leads with other businesses or use them to market to your visitors.
Usually not. If you can paste HTML into a page, you can embed a calculator. Our embed guide walks through plain HTML pages and common website builders such as WordPress, Wix, Squarespace, Webflow, Shopify and HighLevel. A developer helps only if your site blocks embedded content by policy.
Yes. You can set brand colors and choose a theme, and on higher plans remove our branding entirely and serve calculators from your own domain. The calculators adjust to the width of the space you place them in, including on phones.
They use the same tested formulas as our consumer site, with each worked example recomputed independently. They still produce estimates, so we recommend keeping the built-in disclaimer visible and pointing customers to your official disclosures for final terms. Our methodology page explains the formulas, rounding and testing in detail.
Yes. Calculator text is available in English and Spanish, so you can place a Spanish version on pages for Spanish-speaking visitors. Any text you write around the calculator on your own page is yours to translate. You choose the language when you set up each embed, so English and Spanish versions can run on different pages of the same site.
Lead webhooks are included on the Branch and Institution plans. On the Community plan, leads still go to the built-in CRM. The plans table on this page shows the current limits for each plan. You can upgrade later without changing your embed snippets, and leads already in the CRM stay where they are.
Yes. You can cancel a plan, and yearly and lifetime plans carry a refund window described in our terms. The plans table and the business plans section of our terms give the current details. If you have questions before you buy, email the partners address and we will explain the terms in plain English.
The calculator processes inputs to show results. If a visitor chooses to submit the lead form, their details and results go to your account so you can follow up. You are responsible for telling your visitors how you use that information in your own privacy policy.
For businesses
Compare the plans below, then embed your first calculator with one snippet.