If you write about money — a blog, a newsletter, a college resource page — a working calculator does something an explanation cannot. It lets the reader put their own number in. That is usually the moment an article stops being read and starts being used.
Our calculators can be embedded on any site, free, with no account and no API key. This page explains how, and what the limits are.
How to add one
Every calculator has an embeddable version at the same path under /embed/. Drop it into an iframe and it works:
- Pick the calculator you want — EMI, SIP, in-hand salary, income tax, and the rest are all available.
- Use the /embed/ version of its path as the iframe source.
- Give the iframe a width of 100% and a height of around 600px; the widget is responsive and will fit the column it is placed in.
- No script tag, no key, no registration. It is a plain iframe.
What it costs, and what we ask
Nothing, and nothing. There is no paid tier, no usage cap and no tracking pixel aimed at your readers. A link back is appreciated where it fits naturally, but it is not a condition.
The embed pages are deliberately served with permissive framing headers so that any domain may iframe them — the ordinary site pages are not, and will refuse to load in a frame. They also carry a noindex header, so an embedded widget never competes with your own page in search results, and your page is the one that ranks for the topic rather than ours.
What the widget does and does not do
- Calculations run in the reader’s browser. Nothing they type is sent anywhere or stored.
- The widget adapts to light and dark, so it sits reasonably inside most themes.
- It does not collect emails, set marketing cookies, or show advertising.
- It is not customisable in colour or branding today — if that matters for your use, the calculator is probably better linked than embedded.
Where embedding actually helps
- An article about home loans, with the EMI calculator directly under the section on affordability.
- A salary explainer, where the reader wants their own in-hand figure rather than the example.
- A college or employer resource page, where linking out loses people and embedding does not.
- A newsletter archive page, where the calculation is the reason someone returns to the post.
One suggestion from watching how these get used: place the widget immediately after the paragraph that makes the reader want a number, not at the end of the article. By the end, they have usually stopped looking for one.
Browse the calculators you can embedFrequently asked questions
- Do I need permission?
- No. The embed pages are published for exactly this purpose and may be used on any site, including a commercial one.
- Will the embedded widget compete with my page in Google?
- No. The embed pages carry a noindex header specifically so they stay out of search results and your page remains the one that ranks.
- Does it work on mobile?
- Yes. The widget is responsive and sizes itself to the container, so it behaves inside a normal article column on a phone.
- Can I change the colours or add my logo?
- Not currently. The widget follows its own light and dark styling. If branding matters for your use, linking to the full calculator is usually the better choice.
- What happens if you change a calculator?
- The embed updates with it, including rate changes, so an embedded tool does not silently go stale the way a copied table does.