Each calculator on this site is available as a widget: the same form, the same step-by-step result and the same “check before you rely on this date” list, sized to fit inside your page. Holiday calendars and rule changes are updated on our side, so the widget on your site never runs on last year’s holiday list.
Copy the code
Paste this where the calculator should appear. Change the address to the calculator you want from the table below.
<iframe src="https://deadlinecalculator.net/embed/federal/"
title="Federal court deadline calculator"
style="width:100%;height:760px;border:0" loading="lazy"></iframe>
<script src="https://deadlinecalculator.net/embed.js" async></script>
The script line is optional. With it, the widget grows to fit its result, so your visitors never see a scrollbar inside the frame. Without it, set a height that suits your layout; 760 pixels fits the form and a typical result on a desktop screen.
| Calculator | Widget address |
|---|---|
| All rules (federal, California, Texas) | https://deadlinecalculator.net/embed/ |
| Court days forward or back from a hearing | https://deadlinecalculator.net/embed/court-date-calculator/ |
| Federal civil (FRCP) | https://deadlinecalculator.net/embed/federal/ |
| Federal answer deadline | https://deadlinecalculator.net/embed/federal/answer-deadline/ |
| California civil | https://deadlinecalculator.net/embed/california/ |
| California motion deadlines | https://deadlinecalculator.net/embed/california/motion-deadlines/ |
| Texas civil | https://deadlinecalculator.net/embed/texas/ |
| Texas answer deadline | https://deadlinecalculator.net/embed/texas/answer-deadline/ |
Match your site’s colors
The widget follows your visitor’s light or dark setting. To fix one look, add ?theme=light or ?theme=dark to the address, for example https://deadlinecalculator.net/embed/texas/?theme=light.
What your visitors get
- Every counted and skipped day. The result lists each step with the rule that requires it, and names every weekend and holiday it passed over.
- The pitfalls for that rule. Each result carries the checklist of facts that can change the deadline, such as the service method, an extension order or a local closure.
- Calendar files. Visitors can add the deadline to Outlook, Google Calendar or Apple Calendar from inside the widget.
- Keyboard and screen-reader support. The widget is the same accessible form as our own pages.
Privacy and security
The widget sets no cookies, runs no analytics and loads nothing from third parties. The dates a visitor types are used to compute the result and are not stored. The widget cannot read anything on your page; the optional sizing script only listens for the widget’s height.
Conditions of use
You may embed the widgets free of charge on any site, including commercial ones, on these conditions:
- Keep the “Calculator by DeadlineCalculator.net” line visible. It links to the full calculator page, which has the explanations your visitors may need.
- Do not place the widget where it suggests that we, or the courts, endorse your firm or services.
- Do not alter the widget’s results or wrap it in a page that does.
The widget gives general information, not legal advice, as our terms explain. If a deadline matters to a case, the person relying on it must confirm it against the governing rules and any court order. Questions about embedding, or a calculator you would like to see, can be sent through the about page.