10 free tools — everything runs in your browser
Calculate exact age in years, months, days from date of birth
Calculate percentages, increases, decreases instantly
Calculate your Body Mass Index in metric or imperial
Calculate tips and split restaurant bills
Calculate weighted/unweighted GPA on 4.0 scale
Calculate days, weeks, months, years between any two dates
Calculate sale price, savings, and stack discounts
Daily calorie needs (TDEE) with macro breakdown
Convert between 150+ currencies with live rates
Convert length, weight, temperature, and more