Calculators

Calculate percentages easily: find X% of Y, percentage change, percentage difference, and more.

Calculate exact age from date of birth in years, months, days, hours, and minutes.

Calculate tip amount and total bill per person. Split the bill among multiple people easily.

Calculate discounted price, savings amount, and final price after applying a percentage discount.

Calculate compound interest growth over time. See how your investment grows with regular contributions.

Calculate monthly loan payments, total interest, and amortization schedule for any loan.

Calculate your GPA from course grades and credit hours. Supports 4.0 and percentage scales.

Calculate daily calorie needs based on age, weight, height, gender, and activity level (TDEE).

Calculate your Body Mass Index (BMI) using height and weight. Supports metric and imperial units.

Calculate simple interest, total amount and earnings.

Calculate monthly mortgage payments and total cost.

Calculate return on investment percentage.

Calculate income tax and net take-home pay.

Calculate VAT amount and price with or without VAT.

Convert annual salary to hourly, monthly, and weekly rates.

Convert hourly wage to annual salary and vice versa.

Calculate fuel cost for a trip.

Calculate electricity cost based on watts and hours.

Calculate how much paint you need for a room.

Calculate how much flooring material you need.

Calculate how many wallpaper rolls you need for a room.

Calculate and scale aspect ratios for any resolution.

Convert pixel values to em/rem units for CSS.

Calculate triangle area, perimeter and angles.

Calculate circle area, circumference, and diameter.

Check if a number is prime and find prime factors.

Calculate least common multiple and greatest common divisor.

Convert numbers between binary, octal, decimal, and hex.

Calculate mean, median, mode, and standard deviation.

Calculate standard deviation and variance of a dataset.

Calculate basic probability and combinations.

Generate random numbers within a custom range.

Calculate your final grade and GPA from scores.

Estimate calories burned during exercise.

Calculate your ideal weight range by height and gender.

Estimate body fat percentage from measurements.

Calculate Basal Metabolic Rate and daily calorie needs.

Calculate your pregnancy due date from last menstrual period.

Estimate ovulation date and fertile window.