All Calculators

Advanced calculator with standard and scientific functions, graphing capabilities

Calculate your Body Mass Index based on height and weight

Find your ideal weight based on height, age, and gender

Calculate your Basal Metabolic Rate and daily calorie needs

Calculate your waist-to-hip ratio and assess health risks

Calculate BMI percentiles for children and teens

Calculate your lean body mass and fat mass

Calculate your body surface area for medical dosing

Find your healthy weight range based on BMI

Determine your body frame size using wrist measurements

Track and predict child growth percentiles

Calculate your daily water intake needs

Understand air quality index values and health impacts

Calculate your daily calorie needs based on activity level

Calculate monthly payments and total interest for loans

Calculate monthly loan payments with detailed amortization schedule

Advanced financing calculator for vehicles, equipment, and other purchases

Calculate how your investments grow with compound interest

Calculate mortgage payments, amortization, and total interest

Calculate percentages, increases, decreases, and differences

Calculate profit, revenue, cost, and profit margin

Calculate interest earned or paid on principal amount

Calculate profit margin, markup, and selling price

Plan your retirement savings and income needs

Calculate investment growth, returns, and future value

Calculate optimal pricing based on costs, competition, and market demand

Calculate the exact time between two dates

Calculate the average of a set of numbers

Calculate area for various shapes and polygons

Solve quadratic equations with step-by-step solutions

Solve proportions using the rule of three method

Calculate your daily calorie needs based on activity level

Calculate your ideal macronutrient ratios for your goals

Estimate your body fat percentage using various methods

Calculate your Total Daily Energy Expenditure

Estimate your one-repetition maximum for weightlifting

Calculate your daily protein needs based on your goals

Calculate calories burned during different activities

Find your ideal weight based on height and gender

Calculate your Basal Metabolic Rate

Calculate running or walking pace, time, and distance

Estimate your maximal oxygen uptake and fitness level

Calculate your estimated due date and pregnancy timeline

Track healthy weight gain during pregnancy

Estimate when conception likely occurred

Track your fertile window and ovulation days

Calculate calorie needs during pregnancy by trimester

Convert between weeks, months, and trimesters

Track fetal growth and development milestones

Estimate fetal weight by gestational age

Convert between different units of measurement

Convert between Celsius, Fahrenheit, and Kelvin

Convert between meters, feet, inches, and more

Convert between kilograms, pounds, ounces, and more

Convert between liters, gallons, cups, and more

Convert between km/h, mph, m/s, and more

Convert between seconds, minutes, hours, days, and more

Convert between joules, calories, kWh, and more

Analyze algorithm complexity and performance

Test and debug regular expressions with examples

Encode and decode text and files to/from Base64

Generate secure passwords with strength analysis

Convert between bytes, KB, MB, GB, TB and more

Generate QR codes for URLs, text, and contact info

Format, validate, and beautify JSON data

Generate MD5, SHA1, SHA256 hashes for text and files

Encode and decode URLs and query parameters

Convert between HEX, RGB, HSL, and other color formats