Free Law Firm Website Tools

Free calculators your law firm's website can embed today

To put a calculator on a law firm website, copy one of the four free embed codes below and paste it into any page that accepts HTML: a WordPress custom HTML block, a Squarespace code block, a Wix embed element, or your template. Each widget is a self-contained iframe with real state rules; no plugin, script, or developer required, and the only condition is keeping the one-line attribution link under the widget.

A visitor who lands on a practice page has a number in mind: a filing deadline, a monthly support amount, an interest balance, a settlement range. These widgets answer on your page, so the next step is your contact form instead of another search. Four calculators, one snippet each, your firm name on the widget if you want it.

Get the Embed Codes Browse all free legal tools

Copy-Paste Embed

One iframe plus one attribution line per widget. No plugin, no script tags, no developer.

Real State Rules

Statute citations, guideline models, and interest rates across all 50 states and D.C.

Self-Contained Iframes

Run no script on your page. Cannot conflict with your theme or styling.

Never Gated

Visitors always see the on-screen result. Email is optional, for a copy only.

The Widgets

Four free calculator widgets for your law firm website

Each card below carries the copy-ready embed code and a live preview of exactly what your visitors will see. Add your firm name once and every snippet updates. The personal injury widget also has its own deep-dive page at the settlement calculator widget hub.

Show your firm name on the widgets (optional)

Type it once and every snippet below updates. The widget then shows "Provided by your firm" under its title.

Statute of Limitations Calculator

State, claim type, and incident date in; the filing deadline out, with the statute citation, days remaining, and discovery-rule handling.

Best fit: Litigation, personal injury, and employment practices; legal blogs covering deadlines.

<iframe src="https://legaltank.org/embed/statute-of-limitations-calculator?ref=embed"
  title="Statute of Limitations Calculator"
  style="width:100%;max-width:720px;height:760px;border:1px solid #1e293b;border-radius:12px;"
  loading="lazy"></iframe>
<p style="font-size:13px;margin-top:6px;">
  <a href="https://legaltank.org/tools/statute-of-limitations-calculator">Statute of limitations calculator by Legal Tank</a>
</p>

The last three lines are the attribution link that sits under the widget on your page. Keeping it intact is the condition of free use. Adjust the height if your theme adds padding; the widget scrolls inside its frame if it needs more room.

Child Support Calculator

A good-faith monthly estimate under the visitor’s state guideline model (income shares, percentage of income, or Melson), with the assumptions stated.

Best fit: Family law practices and divorce or custody resource pages.

<iframe src="https://legaltank.org/embed/child-support-calculator?ref=embed"
  title="Child Support Calculator"
  style="width:100%;max-width:720px;height:860px;border:1px solid #1e293b;border-radius:12px;"
  loading="lazy"></iframe>
<p style="font-size:13px;margin-top:6px;">
  <a href="https://legaltank.org/tools/child-support-calculator">Child support calculator by Legal Tank</a>
</p>

Judgment Interest Calculator

Post-judgment interest for federal courts and all 50 states plus D.C.: verified statutory rates where they are fixed, honest rate prompts where they are index-based.

Best fit: Collections and judgment-enforcement firms; creditor-side practices.

<iframe src="https://legaltank.org/embed/judgment-interest-calculator?ref=embed"
  title="Judgment Interest Calculator"
  style="width:100%;max-width:720px;height:800px;border:1px solid #1e293b;border-radius:12px;"
  loading="lazy"></iframe>
<p style="font-size:13px;margin-top:6px;">
  <a href="https://legaltank.org/tools/judgment-interest-calculator">Judgment interest calculator by Legal Tank</a>
</p>

Personal Injury Settlement Calculator

The multiplier method with 50-state comparative negligence rules and filing deadlines, the same engine as our flagship settlement calculator.

Best fit: Personal injury firms and accident-coverage blogs.

<iframe src="https://legaltank.org/embed/personal-injury-calculator?ref=embed"
  title="Personal Injury Settlement Calculator"
  style="width:100%;max-width:720px;height:820px;border:1px solid #1e293b;border-radius:12px;"
  loading="lazy"></iframe>
<p style="font-size:13px;margin-top:6px;">
  <a href="https://legaltank.org/personal-injury-calculator">Personal injury settlement calculator by Legal Tank</a>
</p>

Free tier terms: keep the attribution line intact wherever a widget appears. The calculators are educational, produce estimates rather than legal advice, and Legal Tank is not a law firm. We may update the widgets or these terms as the program grows.

Three Steps

How a law firm website calculator goes live

There is no onboarding call, no account, and no approval queue. A widget goes from this page to live on yours in three steps.

1
Pick a widget and copy its code
Four calculators, one snippet each: an iframe plus one attribution line. Add your firm name first if you want it displayed.
2
Paste it into any page
WordPress, Squarespace, Wix, Webflow, or raw HTML. No script tags, no plugin, no developer needed.
3
Visitors get instant answers
Deadlines, guideline amounts, interest balances, and settlement ranges keep visitors on your page instead of bouncing back to search.

Customization notes for your web person

Width: the snippet uses width 100 percent with a 720 pixel max-width, so it fills narrow columns and stops growing in wide ones. Change the max-width to fit your layout.
Height: each widget ships with a recommended height. Results expand the content, so if you shrink the frame the widget scrolls inside it rather than breaking your page.
Border and corners: the border and radius live in the style attribute of the iframe tag; restyle or remove them to match your theme.
Attribution: the paragraph under the iframe is a plain HTML link on your page. Keep it as shipped; you may restyle the text, but the link itself stays.

Free Tier Terms

What it costs to embed a legal calculator: one visible link

We ask for exactly one thing in exchange for the widgets, the state data behind them, and the updates that keep that data current: the one-line attribution link the snippet places under the widget stays on the page, wherever the widget appears. That link is how the free program pays for itself, and it also tells your visitors plainly where the tool comes from.

The attribution sits under the iframe rather than inside it on purpose: text inside the widget belongs to our page, while the line under it is ordinary HTML on yours. Please paste the snippet as shipped, restyle the text if you like, and leave the link pointing where it points. If the attribution does not fit your site's policies, the white-label tier below removes it entirely.

The full calculators the links point to: the filing deadline calculator for all 50 states, the state guideline child support estimator, the post-judgment interest calculator, and the injury settlement estimator.

Who Installs What

Matching each calculator to your practice pages

The widgets earn their place next to the contact form on the practice pages where visitors arrive with a number in mind.

Litigation and injury practices

The statute of limitations widget answers the first question every potential plaintiff has: is there still time? A visitor who sees a deadline with a statute citation and a countdown treats the contact form as the obvious next step. Pair it with the settlement calculator on car accident and injury pages.

Family law practices

The child support widget gives divorce and custody pages a working estimate under the visitor's own state guideline model, with the assumptions stated. A parent who has entered incomes and overnights arrives at intake already half-screened.

Collections and judgment enforcement

The judgment interest widget is the firm-facing one: a creditor who watches the balance grow by a dollar figure per day understands why enforcement is worth pursuing now. It shows verified statutory rates and refuses to guess where a state sets its rate by index.

Legal blogs and advocacy sites

The free tier is open to any legal blog or advocacy site, not just firms. A working tool next to your coverage gives readers a reason to stay, return, and cite the page.

Beyond the Free Tier

Want a custom-branded version, with the leads going to you?

The white-label tier removes Legal Tank branding entirely, carries your logo and colors, drops the attribution requirement, and routes every visitor email straight to your intake. It is part of the same program that puts our drafting bench behind your firm: our white-label legal drafting works under your letterhead, and the broader law firm program covers per-document drafting support: demand letters, motions, and discovery, prepared for your review and signature.

Explore the law firm program See white-label drafting Start with the free widgets

Visitors & Data

How the widgets treat your visitors

A calculator on a firm website only works if it cannot embarrass the firm hosting it. Three rules govern every install.

Isolated from your site

Each widget runs entirely inside its own iframe. It executes no script on your page, reads nothing from your site, and cannot touch your theme, your analytics, or your forms.

Results are never gated

Every widget shows its result on screen instantly. Email is optional, offered only for a copy of the result, and a visitor who declines loses nothing.

No solicitation under your brand

Free-tier follow-up offers our attorney-drafted documents only. We never claim to be a law firm, never give legal advice, and never solicit representation from your visitors.

What the calculators are, and are not

The calculators are educational: they produce estimates from the visitor's own inputs, not legal advice, and Legal Tank is not a law firm. Deadlines can be changed by tolling and exceptions, support orders are set from official state worksheets, judgment rates change, and no calculator can price disputed liability. Every result says so, and the hosting page should keep the firm's standard disclaimer nearby.

FAQ

Legal calculator widget FAQ

Are the legal calculator widgets really free?

Yes. Every widget on this page is free for any law firm, legal blog, or advocacy site, with no signup and no account. The only condition is keeping the one-line attribution link that the snippet places under the widget, crediting the full calculator on legaltank.org. If you want the attribution removed and the widget carrying your brand alone, that is the white-label tier, available through our law firm program.

How do I add a calculator to my law firm website?

Copy the embed code for the widget you want and paste it into any page that accepts HTML: a WordPress custom HTML block, a Squarespace code block, a Wix embed element, a Webflow embed, or your page template directly. Each widget is a self-contained iframe, so it cannot conflict with your theme, your scripts, or your styling. Most sites have one live in under five minutes.

Why does the snippet include a link under the iframe?

Two reasons. For your visitors, it says plainly where the tool comes from. For us, that link on your page is how the free program sustains itself: it is a normal HTML link from your site to the full calculator, and keeping it intact wherever the widget appears is the condition of free use. The link inside the widget itself is not a substitute, because content inside an iframe belongs to our page, not yours.

Can I change the width and height of a widget?

Yes. Each snippet ships with width 100 percent up to a 720 pixel maximum and a recommended height for that widget. You can change the max-width to fit your column and adjust the height freely; if the widget needs more room than you give it, it scrolls inside its own frame instead of breaking your layout. The border and corner radius in the style attribute are yours to restyle or remove.

Can I put my firm name on the widgets?

Yes. Type your firm name into the generator above and every snippet updates; the widget then shows "Provided by your firm" under its title. For full white-labeling, your logo and colors with no Legal Tank branding, apply through the law firm program.

Do the widgets slow my site down or run scripts on my page?

No. Each widget loads lazily inside an iframe, so it does not block your page render, and it executes no script on your page, reads nothing from your site, and cannot touch your theme, your analytics, or your forms.

Where do the numbers in the calculators come from?

Each widget runs the same engine and the same legal data as the full calculator it is built from: the statute of limitations widget uses our 50-state statute dataset with citations, the child support widget uses each state's real guideline model classification, the judgment interest widget uses verified statutory rates (and honestly asks for the rate where a state sets it by index instead of hardcoding a stale number), and the settlement widget uses the multiplier method with 50-state comparative negligence rules. Every result is labeled as an estimate, never as legal advice.

Who receives the emails visitors enter in a widget?

The on-screen result is never gated. A visitor who asks for an emailed copy of their result gets it from Legal Tank on the free tier, and the follow-up offers our attorney-drafted documents; we never claim to be a law firm and never solicit representation. On the white-label tier those emails route to your firm intake instead.

Is an embedded calculator compliant with attorney advertising rules?

The widgets are drafted around the principle behind ABA Model Rule 7.1: communications about legal services must not create unjustified expectations about results. Every widget returns a bounded estimate computed from the visitor's own inputs, states its assumptions, and carries an estimate-only disclaimer. Because advertising rules vary by state bar, treat the hosting page like any other page of your site: keep your firm's standard disclaimer nearby and review it under your state's rules.

Two-Minute Install

Put a calculator on your website today

Grab a free embed code, add your firm name, and give visitors a reason to stay on your page.

Written and legally reviewed by our editorial teamUpdated August 16, 2026

By Jessica Henwick, Editor-in-ChiefLegally reviewed by David Chen, Esq., Legal Review Director

Get the Embed Codes Compare the white-label tier