Embed Free Health Calculators

Add accurate, science-backed health calculators to your website with a single line of code. Our embeddable calculators are free to use, fully responsive, and work in any iframe-compatible site.

Free to useNo registration requiredMobile responsiveLight and dark themes

Need our full widget library (all calculators)? Use Calculator Widgets.

How It Works

Choose a Calculator

Pick from our library of health calculators below.

Copy the Code

Copy the iframe snippet and paste it into your HTML.

Done

The calculator appears on your site immediately. No setup needed.

Theme for embed codes:

BMI Calculator

Calculate Body Mass Index to assess weight relative to height. Shows BMI value, category, and healthy weight range.

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<iframe src="https://www.healthcalc.xyz/api/embed/bmi" width="100%" height="450" title="BMI Calculator - HealthCalc" style="border:0;border-radius:16px;max-width:100%;min-width:320px;" loading="lazy"></iframe>

TDEE Calculator

Calculate Total Daily Energy Expenditure based on the Mifflin-St Jeor equation with activity multipliers.

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<iframe src="https://www.healthcalc.xyz/api/embed/tdee" width="100%" height="650" title="TDEE Calculator - HealthCalc" style="border:0;border-radius:16px;max-width:100%;min-width:320px;" loading="lazy"></iframe>

Body Fat Calculator

Estimate body fat percentage using the U.S. Navy circumference method with gender-specific formulas.

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<iframe src="https://www.healthcalc.xyz/api/embed/body-fat" width="100%" height="650" title="Body Fat Calculator - HealthCalc" style="border:0;border-radius:16px;max-width:100%;min-width:320px;" loading="lazy"></iframe>

Calorie Deficit Calculator

Plan safe weight loss with a personalized daily calorie target, timeline projections, and safety warnings.

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<iframe src="https://www.healthcalc.xyz/api/embed/calorie-deficit" width="100%" height="750" title="Calorie Deficit Calculator - HealthCalc" style="border:0;border-radius:16px;max-width:100%;min-width:320px;" loading="lazy"></iframe>

Attribution Requirements

Our embeddable calculators are free to use on any website, blog, or application. We have one simple requirement:

Keep the "Powered by HealthCalc" link visible

Each embedded calculator includes a small attribution link at the bottom. This link must remain visible and functional. Do not hide, remove, or modify the attribution link.

By embedding our calculators, you agree to these terms. If you need a white-label solution without attribution, please contact us to discuss licensing options.

Frequently Asked Questions

Is there a cost to embed calculators?

No. Our calculators are completely free to embed as long as the attribution link remains visible.

Can I customize the size?

Yes. Adjust the width and height attributes in the iframe code. The calculators are responsive and will adapt to the container. Minimum recommended width is 300px.

Do embedded calculators use cookies?

No. The embedded calculators are self-contained HTML pages that run all calculations client-side. They do not set cookies, track users, or send data to our servers.

Will more calculators be available for embedding?

Yes. We plan to expand the embed library over time. Let us know which calculators you would like to see next.

Does the embed affect my page performance?

The embeds are lightweight HTML pages with no external dependencies, no frameworks, and no tracking scripts. They load fast and have minimal impact on your page performance. The iframe uses lazy loading by default.