Embeddable calculator widgets
Add any Zerdly calculator to your website, blog or intranet with one line of code. Widgets run entirely in your visitors’ browsers — no sign-up, no tracking, nothing stored — and they stay up to date automatically.
How to embed a tool
- Open the calculator you want on Zerdly.
- Scroll to “Add this tool to your website” and press Copy code.
- Paste the snippet into your page’s HTML. That’s it.
Attribution (a link back to the tool) is included in the widget and keeps it free to use.
Popular widgets
Bolt Tensile Stress Area Calculator
Free to use — the widget runs entirely in your visitors’ browsers.
Watts to Amps Calculator
Free to use — the widget runs entirely in your visitors’ browsers.
Section Modulus Calculator
Free to use — the widget runs entirely in your visitors’ browsers.
Concrete Slab Volume Calculator
Free to use — the widget runs entirely in your visitors’ browsers.
Mortgage Repayment Calculator
Free to use — the widget runs entirely in your visitors’ browsers.
Percentage Calculator
Free to use — the widget runs entirely in your visitors’ browsers.
BMI Calculator
Free to use — the widget runs entirely in your visitors’ browsers.
Subnet Mask Calculator
Free to use — the widget runs entirely in your visitors’ browsers.