Fast, accurate calculators for every need
Calculator.pro provides free, easy-to-use online calculators for finance, health, math, and more.
Financial Calculators
View All Financial CalculatorsMortgage Calculator
Calculate monthly mortgage payments, total interest paid, and view amortization schedule.
Use CalculatorLoan Calculator
Calculate loan payments, total interest, and view payment schedule for any loan type.
Use CalculatorSalary Calculator (Take-Home Pay)
Calculate your take-home pay after taxes and deductions to see how much you actually earn.
Use CalculatorHealth & Fitness
View All Health & FitnessBMI Calculator
Calculate your Body Mass Index (BMI) and determine your weight category based on height and weight.
Use CalculatorBody Fat Calculator
Calculate your body fat percentage using different methods and learn what it means for your health.
Use CalculatorCalorie Calculator
Calculate your daily calorie needs based on your age, gender, height, weight, and activity level.
Use CalculatorMath Calculators
View All Math CalculatorsDate & Time
View All Date & TimeConversion Calculators
View All Conversion CalculatorsTemperature Converter
Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine scales with instant results.
Use CalculatorWeight Converter
Convert weight between different units including kilograms, pounds, ounces, stone, and more.
Use CalculatorLength Converter
Convert length and distance between different units including meters, feet, miles, kilometers, and more.
Use CalculatorMarketing Calculators
View All Marketing CalculatorsCPM Calculator
Calculate Cost Per Mille (CPM), ad impressions, or campaign cost for display advertising.
Use CalculatorROAS Calculator
Calculate Return on Ad Spend (ROAS) to measure your advertising effectiveness.
Use CalculatorCTR Calculator
Calculate Click-Through Rate (CTR) for your digital marketing campaigns.
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