Widgets

Free calculator widgets for your website

Copy an iframe, publish a useful calculator on your site, and keep the visible EverydayCalc.org credit link with the widget. The embeds are lightweight, ad-free, and built for helpful resource pages.

Widget directory

Browse widgets by category

Find the calculator that fits the article, checklist, classroom resource, or planning guide you are improving.

Home Air widgets

Aquarium widgets

Moving widgets

Home Projects widgets

Costs widgets

Education widgets

Finance widgets

Previews

Widget demos and previews

These previews load the same noindex iframe pages used by the public embeds, so you can check the size and behavior before copying code.

Embed code

Copy-ready embed snippets

Paste the iframe where your CMS, article template, or resource page allows embeds. Keep the width at 100% and adjust the height only if your page needs more vertical room.

Dehumidifier Size Calculator

Best for HVAC blogs, basement moisture guides, home improvement websites, and indoor air quality resources.

<iframe src="https://everydaycalc.org/embed/dehumidifier-size-calculator/" title="Dehumidifier Size Calculator widget by EverydayCalc.org" width="100%" height="600" loading="lazy" style="border:0;max-width:100%;"></iframe>

Aquarium Heater Size Calculator

Best for aquarium care blogs, fishkeeping guides, pet stores, and tank setup resources.

<iframe src="https://everydaycalc.org/embed/aquarium-heater-size-calculator/" title="Aquarium Heater Size Calculator widget by EverydayCalc.org" width="100%" height="600" loading="lazy" style="border:0;max-width:100%;"></iframe>

Electricity Cost Calculator

Best for energy-saving blogs, summer electric bill guides, appliance guides, smart home sites, and utility cost resources.

<iframe src="https://everydaycalc.org/embed/electricity-cost-calculator/" title="Electricity Cost Calculator widget by EverydayCalc.org" width="100%" height="600" loading="lazy" style="border:0;max-width:100%;"></iframe>

Paint Coverage Calculator

Best for DIY blogs, painting contractors, home project guides, and renovation resource pages.

<iframe src="https://everydaycalc.org/embed/paint-coverage-calculator/" title="Paint Coverage Calculator widget by EverydayCalc.org" width="100%" height="600" loading="lazy" style="border:0;max-width:100%;"></iframe>

Moving Box Calculator

Best for moving companies, apartment blogs, relocation guides, and packing checklist pages.

<iframe src="https://everydaycalc.org/embed/moving-box-calculator/" title="Moving Box Calculator widget by EverydayCalc.org" width="100%" height="600" loading="lazy" style="border:0;max-width:100%;"></iframe>

Loan Payment Calculator

Best for personal finance blogs, loan comparison guides, credit union resources, and budgeting tools pages.

<iframe src="https://everydaycalc.org/embed/loan-payment-calculator/" title="Loan Payment Calculator widget by EverydayCalc.org" width="100%" height="600" loading="lazy" style="border:0;max-width:100%;"></iframe>

Use cases

Where the widgets fit naturally

Use a widget when it makes your page more useful for the reader. Good fits include HVAC blogs, aquarium blogs, moving companies, teacher sites, home improvement blogs, and personal finance sites where the calculator supports the article, checklist, or resource instead of feeling like a forced link.

HVAC blogs

Add dehumidifier, air purifier, or room comfort calculators next to sizing guides so readers can check their room before comparing equipment.

Aquarium blogs

Embed heater, tank, or aquarium care calculators inside setup articles where gallons, watts, and livestock sensitivity matter.

Moving companies

Use box, truck, and moving cost widgets on packing checklists so customers can estimate scope before requesting a quote.

Teacher sites

Add supply budget or grade percentage calculators to classroom resource pages without sending families through an ad-heavy flow.

Home improvement blogs

Place paint, primer, flooring, or project calculators beside material planning guides and link readers to the detailed assumptions.

Personal finance sites

Use mortgage and loan payment widgets inside explainers where users need a quick payment estimate before comparing scenarios.

Installation steps

Choose the widget that matches the calculator your readers need.
Copy the iframe snippet and paste it into the article, page builder, or HTML block.
Preview the page on desktop and mobile so the calculator is not squeezed or hidden.
Keep the built-in credit link visible below the widget.
Link nearby text to the matching full calculator page when readers need formulas, FAQs, examples, and source notes.

Friendly terms and credit

The widgets are free to use on helpful pages that keep the EverydayCalc.org credit link visible. Do not remove the credit, frame the widget in a misleading way, or present the estimate as professional advice. A natural sentence near the widget is enough: "Calculator by EverydayCalc.org; use the full page for assumptions and examples."

Allowed use is simple: place the widget where it helps readers complete an estimate, keep attribution neutral, and avoid stuffing the page with repeated calculator links. If a placement is paid, sponsored, affiliate, or partner content, disclose it clearly and use rel="sponsored" or rel="nofollow" on surrounding paid links where appropriate.