CalculBox

Free online calculators & utility tools — no sign-up needed

Design Tools Productivity Developer Tools發布於 2026年6月5日

什麼是 CalculBox？

CalculBox is a free collection of online utility tools — age calculator, Smart BMI (age-based), international tip calculator, percentage calculator, HEX/RGB/HSL color converter with Pantone colors, days between dates, random name picker, case converter and text counter. No sign-up, no downloads, completely free.

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