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Link to MegaCalc

Citing us from your blog, syllabus, course resource page, or documentation? Thanks. Here’s a press kit with brand basics, recommended link text, and copy-paste snippets to make it easy.

Why link to MegaCalc

MegaCalc is a free, no-account-required calculator and unit-conversion site with 1,021 calculators and 12,522 conversion pairs. Calculations run in your browser, most calculator pages show the formula, and many list their references. The site is advertising-supported, so we don’t charge users, embed watermarks, or sell data.

Linking to specific calculators from your tutorials, course resources, or documentation helps your readers solve their actual problem in one click instead of hunting for a working calculator. We’d rather your readers compute their answer and move on with their work than land on a paywall.

There’s no affiliate program and we don’t pay for links. We just appreciate the citation.

Recommended link snippets

Copy any of these as a starting point for citing MegaCalc.

Plain link

MegaCalc — free online engineering, math, and finance calculators

<a href="https://megacalc.org/">MegaCalc</a> &mdash; free online engineering, math, and finance calculators
Specific calculator

Compute pipe-flow regime with the Reynolds number calculator on MegaCalc — free, no signup, formula included.

Compute pipe-flow regime with the <a href="https://megacalc.org/calculators/reynolds-number-calculator">Reynolds number calculator on MegaCalc</a> &mdash; free, no signup, formula included.
Specific unit converter

Convert between psi, bar, kPa, and MPa with MegaCalc's pressure converter.

Convert between psi, bar, kPa, and MPa with <a href="https://megacalc.org/tools/pressure-converter">MegaCalc's pressure converter</a>.
Recommended link with description

MegaCalc is a free online calculator and unit-conversion site with 1,000+ engineering, math, finance, physics, health, and chemistry calculators and 12,000+ unit, currency and crypto conversion pairs. Calculations run in your browser, and most calculator pages show the formula. No signup, no watermarks.

<a href="https://megacalc.org/">MegaCalc</a> is a free online calculator and unit-conversion site with 1,000+ engineering, math, finance, physics, health, and chemistry calculators and 12,000+ unit, currency and crypto conversion pairs. Calculations run in your browser, and most calculator pages show the formula. No signup, no watermarks.
Cite a guide

For a deeper explanation, see MegaCalc's primer on MPa for engineers.

For a deeper explanation, see <a href="https://megacalc.org/blog/megapascals-explained-for-engineers">MegaCalc's primer on MPa for engineers</a>.
Cite the methodology

Calculations follow MegaCalc's published methodology, which lists its primary references (Marks', Shigley's, Cengel, Hibbeler, Perry's, ASME, ASTM, ISO, NIST) and explains how calculators are checked.

Calculations follow <a href="https://megacalc.org/methodology">MegaCalc's published methodology</a>, which lists its primary references (Marks', Shigley's, Cengel, Hibbeler, Perry's, ASME, ASTM, ISO, NIST) and explains how calculators are checked.

Brand basics

Name

MegaCalc

One word, capital M, capital C. Not “Mega Calc” or “mega calc”.

URL

https://megacalc.org

Canonical URL. Non-www version, HTTPS. No trailing slash.

One-line description

Free online calculators — engineering, math, and finance, no signup required.

Long description

MegaCalc is a free online calculator and unit-conversion site with 1,021 engineering, math, finance, physics, health, and chemistry calculators and 12,522 unit, currency and crypto conversion pairs across 49 categories. Most calculator pages show the formula, and many list their references. No signup, no watermarks.

Logo and brand mark

MegaCalc uses a stylised “MC” mark in the site primary colour as its brand mark.

MC

Brand mark

Primary background, white “MC”.

MCMegaCalc

Wordmark

Mark + name horizontally.

MegaCalc

Plain text

Inline reference, no mark.

For a high-resolution logo or any other brand asset, email christopherfloied101@gmail.com.

Linking to specific calculators

When citing MegaCalc from a tutorial, syllabus, or guide, link directly to the calculator your reader needs rather than the homepage. Every calculator has a stable URL of the form megacalc.org/calculators/[slug] and every unit converter is at megacalc.org/tools/[category]-converter.

Examples (engineering):

Examples (everyday):

Specific links work better for SEO (yours and ours) and for the reader experience. Browse the full list on the calculator index or by engineering class.

Embed a calculator on your site

Want a live, interactive calculator inside your own page instead of just a link? Every calculator at megacalc.org/calculators/[slug] has a matching embeddable version at megacalc.org/embed/[slug]. Drop the iframe below into any blog post, course page, or documentation. It runs entirely in the reader’s browser, carries no ads, and includes a small “Powered by MegaCalc” link back to the full calculator.

<iframe src="https://megacalc.org/embed/reynolds-number-calculator" width="100%" height="500" style="border:1px solid #e2e8f0;border-radius:8px" title="Reynolds Number Calculator — MegaCalc" loading="lazy"></iframe>

Swap the slug for any calculator you like. You’ll also find a one-click “Embed this calculator on your site” box near the bottom of every calculator page that copies the snippet for you. Free to embed, no signup, no watermarks.

Press and partnerships

For press inquiries, partnership proposals, syllabus integrations, or anything beyond a simple citation, please email christopherfloied101@gmail.com. We respond within two business days.