Free to use · no signup

Put these calculators on your own site

If you run a trade association, an accountancy practice, a business-coaching site or a supplier blog, you're welcome to embed any of our calculators. One line of code, free forever, and we don't track your visitors.

How to embed

Paste this where you want the calculator to appear:

<div data-dd-calc="hourly-rate"></div>
<script src="https://tools.digitaldotsent.com/embed/widget.js" async></script>

That's it. The widget sizes itself to fit and works on mobile. Add the script tag once, even if you embed several calculators on one page.

Available calculators

Calculator	Code	What it answers
Hourly Rate	hourly-rate	What to charge per hour to hit a target income
Markup & Margin	markup-margin	The correct price to quote from cost and target margin
Missed Call Revenue	missed-call	What unanswered calls cost per month and year
Break-Even	break-even	Jobs per month needed to cover costs
Job Profitability	job-profitability	True hourly rate on a job after all hidden time

Live example

This is the real widget, embedded exactly as the code above does it:

The terms, in plain English

• It's free. No signup, no key, no usage limit, and we won't start charging for embeds you've already placed.
• We don't track your visitors. No analytics, cookies or fingerprinting in the widget. Numbers your visitors type stay in their browser.
• Attribution. A small "Calculator by Digital Dots" line sits under the widget. We'd appreciate you leaving it — that link is the only thing we get out of this. If it genuinely doesn't fit your design, remove it; we're not going to police it.
• No warranty. These are planning estimates, not financial advice. Same as on our own site.