I built CalculBox because I was tired of landing on slow, cluttered calculator websites full of ads and pop-ups just to calculate a simple tip or check my BMI.
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.
