This plugin adds a [calculate_at] shortcode that embeds a free, fully working calculator from calculate.at directly into a post or page. No API key, no account, no configuration — pick a calculator, drop in the shortcode, done.
Available calculators:
tip-calculator— Tip Calculatormortgage-calculator— Mortgage Calculatorbmi-calculator— BMI Calculatorpercentage-calculator— Percentage Calculatormiles-to-km— Miles to Kilometers Converter
Example:
[calculate_at calculator="mortgage-calculator"]
The embedded calculator is a live iframe — it runs the same code as the calculator on calculate.at, so it stays up to date automatically. It auto-resizes to fit its content (no fixed height, no scrollbar, no dead space), and includes a small attribution footer linking back to calculate.at and the specific calculator page.
Want a calculator that isn’t listed? More calculators can be added on request — contact calculate.at with what you need. calculate.at also takes requests to customize an existing calculator, translate one into another language, or build a new one from scratch.
This plugin is a client for the free calculate.at service — see calculate.at’s Terms of Use. No account, API key, or registration is required to use it; the embedded calculators are free and publicly accessible.