CalcMaster Pro - 50+ free calculators for finance, health, math & daily life

Hi Product Hunt! I built CalcMaster Pro because I was frustrated having to use a dozen different sites for basic calculations. It started as a simple loan calculator, then grew to 50+ calculators across Finance, Health, Math, Business, and Daily Life categories. Everything is free, no signup required, works offline, and is mobile-friendly. Also added 30+ PDF and image tools (compress, resize, convert) that run 100% in the browser. Would love your feedback on what calculators to add next!