Questions, benchmark corrections, data errors, or feature suggestions — all welcome. Every message is read.
If you spot an outdated or inaccurate benchmark, include the page URL, the figure in question, and a supporting source if available. Corrections are reviewed and applied promptly.
If a calculator is producing unexpected results or not working, describe the inputs used and the output you received. Include your browser and device if relevant.
Missing a calculator, benchmark vertical, or country? Suggestions for new tools and benchmark pages directly inform what gets built next.