Miryori

Miryori is a free online calculator hub covering finance (CAGR, APY, compound interest, mortgage, ROI), health (BMI, BMR, body fat, WHR, pregnancy, pace), salary and loans, and everyday utility tools (wind chill, heat index, password generator, Roman numerals, generation). Every tool runs entirely in your browser: nothing is uploaded, nothing is stored, and inputs never leave the page. Guides explain each formula with a worked example, the boundary cases that break it, and the common mistakes, so you can check every result yourself. The site is available in multiple languages, and it is maintained by the Miryori calculators team.