Paste one line of HTML and your readers get a working calculator instead of a screenshot of one. 9 of them, all free, all running the same math as our tool pages.
Free, for any site
Commercial or not, one page or fifty. No account, no API key, nothing to sign. If it's useful to your readers, take it.
Credit is optional
The snippet includes a source caption so readers can inspect the method. You may edit or remove it and choose your own link attributes. No backlink or followed link is required.
Nothing tracks your readers
The frame loads Marji's own code and nothing else. No Meta Pixel, no Google Analytics, no cookies, no third-party requests — the embed route ships a Content-Security-Policy that blocks them outright.
The math is the same math
The embed runs the identical compute function as the tool page, in the reader's browser. No numbers are sent to us, so nothing you or your readers type is stored anywhere.
Pre-filling an embed
Every input is readable from the query string, so you can open the calculator on the numbers your article is about. Writing about the 30% delivery commission on a $16 entrée? Point the frame at /embed/delivery-margin-calculator?menuPrice=16&commissionPct=30 and it opens there. The parameter names are the field keys shown on each tool page’s shareable link.
<iframe src="https://marji.co/embed/yield-calculator" title="Yield & EP Cost Calculator by Marji" width="100%" height="634" loading="lazy" style="border:1px solid #b9ad92;max-width:100%"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:6px 0 0"><a href="https://marji.co/tools/yield-calculator">Yield & EP Cost Calculator</a> by <a href="https://marji.co">Marji</a></p>
Find the sales, monthly covers and daily covers your restaurant needs before it makes a dollar. Enter fixed costs, variable cost ratio and average check.
Calculate fully loaded labor cost percentage including payroll taxes, workers' comp and benefits — the version that matches your P&L, not just gross wages.
Calculate cost per pour, pour cost percentage and profit per drink from a bottle price. Includes what a free-pour overpour actually costs you per year.
<iframe src="https://marji.co/embed/variance-calculator" title="Ideal vs. Actual Variance Calculator by Marji" width="100%" height="634" loading="lazy" style="border:1px solid #b9ad92;max-width:100%"></iframe>
<p style="font:13px/1.5 system-ui,sans-serif;margin:6px 0 0"><a href="https://marji.co/tools/variance-calculator">Ideal vs. Actual Variance Calculator</a> by <a href="https://marji.co">Marji</a></p>