Accessibility
We want the calculators and their explanations to be usable on different devices and with assistive technology.
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Features available
The site includes labelled form fields, keyboard-accessible controls, visible focus indicators, a skip-to-content link and responsive layouts. Results are announced when you calculate. Text explanations accompany the tools, and motion preferences are respected.
Known limitations
JavaScript is required to calculate with your own inputs. Without JavaScript, the example results and explanatory text remain available. Browser number fields and validation messages may behave differently with different assistive technology.
We have not completed an independent accessibility certification and do not claim full conformance based on automated checks alone.
Report a problem
Email [email protected] with the page, the task you were trying to complete and, if possible, your browser and assistive technology. Please describe the information or alternative format you need.
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