Free online calculation tools
Free online calculators — percentage, BMI, loan, interest and calorie calculators. Fast, accurate and easy to use calculation tools.
beregne.app is a free online calculator portal. Find percentage, BMI, loan, interest, and calorie calculators here. All tools work directly in your browser — no downloads or registration needed.
Fun
Age Calculator
Free online age calculator. Find your exact age in years, months and days, days until your next birthday, and total days lived from your date of birth.
Love Calculator
Free online love calculator. Find out your love compatibility percentage based on two names — a fun entertainment calculator to share with friends.
Pet Age Calculator
Free pet age calculator. Convert your dog or cat's age to human years using breed-size adjusted formulas recommended by veterinarians.
Health
Blood alcohol content (BAC) calculator
Calculate your blood alcohol content in promille based on weight, sex, drinks consumed and time elapsed. Check if you are under the driving limit.
Calorie calculator
Calculate your basal metabolic rate (BMR) and daily calorie needs based on age, weight, height and activity level.
BMI calculator
Calculate your body mass index (BMI) based on height and weight. Find out if your weight is healthy according to WHO categories — free online BMI calculator.
Ovulation calculator
Calculate your ovulation date, fertile window and next period date based on your last menstrual period and cycle length.
Pregnancy due date calculator
Calculate your estimated due date based on your last menstrual period. Pregnancy weeks, trimesters and days remaining.
Daily water intake calculator
Calculate how much water you should drink per day based on your weight, physical activity level and climate. Free daily water intake calculator.
Math
Date Calculator — Days Between Dates
Free date calculator — calculate the number of days, weeks, months and years between two dates. Quick and easy date difference calculation.
Fraction calculator
Add, subtract, multiply and divide fractions with step-by-step solutions. Simplify fractions and convert mixed numbers — free online fraction calculator.
Mean, Median, Mode Calculator
Calculate the mean, median, and mode of a set of numbers. Free statistics calculator with sum, range, and other descriptive statistics.
Percentage calculator
Calculate percentages quickly and easily. Find out what percentage a number is, percentage change and more.
Word & Character Counter
Count words, characters, sentences and paragraphs in your text. Free word counter tool with reading time estimation.
Finance
Compound growth calculator
Calculate compound growth with periodic contributions. See how your investments or savings grow over time with the power of compounding — free online calculator.
Interest calculator
Calculate simple and compound interest. Find out how much your investment or deposit will earn.
Loan calculator
Calculate your monthly loan payment, total interest paid, and total amount. View the full amortization schedule.
Sports
Our calculators are organized into categories so you can quickly find the tool you need — from financial calculations to health metrics.