MajorCalculator

Professional Calculator is a multi-function Chrome extension that streamlines computation tasks. It combines basic arithmetic with specialized tools like income tax calculations, unit conversions, 3D shape math, mortgage calculations, and kinship relationships, while recording steps for easy reference.

Beyond calculations, it offers history logs, memo notes, RMB capitalization, reusable results, editing options, copy features, adjustable fonts, themes and skins, voice feedback, and time stamping for traceability. It also ships with 12 premium skins and accessibility-friendly options for comfortable use, plus a subscription with ad-free access.