Free Online Tools
Handy tools for everyday tasks — no signup required.
Popular Tools
Age Calculator
Find your exact age in years, months, and days.
BMI Calculator
Calculate your Body Mass Index with kg/lbs and cm/ft support.
Percentage Calculator
Calculate percentages, percentage change, and more.
GPA Calculator
Calculate your GPA from courses, grades, and credit hours.
Mortgage Calculator
Calculate monthly mortgage payment, total interest, and amortization schedule.
Tip Calculator
Calculate tip, total, and per-person split for any bill.
Password Generator
Generate strong, cryptographically secure random passwords in your browser.
QR Code Generator
Generate scannable QR codes from any text or URL — all rendered in your browser.
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Recently Added
Fraction Calculator
Add, subtract, multiply, or divide fractions with step-by-step working.
Math & StatisticsBMI Calculator
Calculate your Body Mass Index with kg/lbs and cm/ft support.
Health & FitnessCalorie Calculator
Calculate TDEE and daily calorie needs from age, weight, height, and activity.
Health & FitnessWeight Loss Calculator
Calculate how long to reach your goal weight based on weekly loss rate.
Health & FitnessSleep Calculator
Find the best wake-up times based on 90-minute sleep cycles.
Health & FitnessWake Up Calculator
Calculate the best bedtime based on your desired wake-up time and sleep cycles.
Health & FitnessBra Size Calculator
Calculate your bra size in US, UK, EU, and Australian sizes.
Health & FitnessPeriod Calculator
Predict your next period, ovulation date, and fertile window.
Health & FitnessPregnancy Calculator
Calculate your pregnancy due date, current week, and trimester.
Health & FitnessOvulation Calculator
Calculate ovulation date and fertile window based on your cycle length.
Health & FitnessWater Intake Calculator
Daily water intake target from body weight, sex, exercise, and pregnancy status.
Health & FitnessChildren BMI Calculator
Calculate a child's BMI and CDC BMI-for-age percentile from age, sex, weight, and height.
Health & Fitness