Free home project calculator widgets.
Add a working CalcurHome calculator to an HTTPS website with one responsive iframe. Visitors can calculate without leaving your page, while the attributed source page preserves the formula, measurement guidance, references and limitations.
Copy, paste and keep the source visible.
Open a widget below, copy its iframe code and paste it into the HTML or custom-code block provided by your publishing platform. The embed loads only the calculator workspace and a visible link to the complete CalcurHome formula page. Measurements remain in the visitor's browser unless they deliberately open or call a public CalcurHome endpoint.
- Keep the iframe attribution intact.The CalcurHome name and Formula & guidance link identify the calculator's source, explanation and limitations.
- Do not imply professional approval.Widgets provide planning arithmetic and never replace product specifications, local codes, suppliers or qualified people.
- Give the widget enough space.Use full container width and the supplied height so fields, results, help text and the source link remain usable.
- Link readers to the relevant project context.A short introduction explaining when to use the calculator is more helpful than dropping an unexplained tool into a page.
Start with a calculator your readers already need.
Recessed Lighting Layout Calculator
Create a centered recessed-lighting layout with even rows, columns, edge offsets, fixture count, center spacing, and total listed lumens.
Embed this calculator
Add the live, responsive calculator to an HTTPS website. Visitors can change measurements inside the embed; the full CalcurHome page remains the source for formulas, guidance and limitations.
Concrete Volume Calculator
Calculate general rectangular concrete volume in cubic yards and approximate bag equivalents from dimensions and a custom placement allowance.
Embed this calculator
Add the live, responsive calculator to an HTTPS website. Visitors can change measurements inside the embed; the full CalcurHome page remains the source for formulas, guidance and limitations.
Square Footage Calculator
Calculate square footage for one or multiple equal spaces, then add a custom waste allowance for accurate flooring, paint, or material planning.
Embed this calculator
Add the live, responsive calculator to an HTTPS website. Visitors can change measurements inside the embed; the full CalcurHome page remains the source for formulas, guidance and limitations.
Paint Calculator
Estimate whole gallons for room walls and ceiling using dimensions, doors, windows, coat counts, and the paint label's coverage rate.
Embed this calculator
Add the live, responsive calculator to an HTTPS website. Visitors can change measurements inside the embed; the full CalcurHome page remains the source for formulas, guidance and limitations.
Room and Window AC BTU Calculator
Size a room or window air conditioner with ENERGY STAR’s area-to-BTU table, ceiling factor, sun or shade, occupants, and kitchen load.
Embed this calculator
Add the live, responsive calculator to an HTTPS website. Visitors can change measurements inside the embed; the full CalcurHome page remains the source for formulas, guidance and limitations.
Every CalcurHome calculator can be embedded.
Visit any calculator page and open Embed this calculatorbelow the working tool. That panel provides the exact iframe and a live preview for the selected calculator, including specialized material, room, landscaping, roofing, deck, pool and home-energy tools.
Browse the calculator directory or use calculator search to find the best match. For a multi-step article, the project planning guides show which measurements should move from one calculator to the next.
Need a calculator added or a source corrected?
Email hello@calcurhome.comwith the page topic, calculation your audience needs and any primary source or product data that should control the result. Requests are evaluated by usefulness and evidence, not by keyword variation alone.