The Most Complete Online Calculator
45+ Free calculators for all your needs. Fast, private, and always available.
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Finance Calculators
Salary Calculator
Most UsedCalculate net salary from gross salary
Mortgage Calculator
Calculate monthly mortgage payments
Loan Calculator
Calculate loan payments and interest
Investment Calculator
Calculate investment returns
Tax Calculators
Income Tax Calculator
Calculate income tax obligations
Sales Tax Calculator
Calculate sales tax amounts
Self-Employment Tax
Calculate self-employment taxes
Property Tax
NewCalculate property tax amounts
Utility Calculators
Date Calculator
Calculate dates and time differences
Unit Converter
Most UsedConvert between different units
Percentage Calculator
Calculate percentages and ratios
Area Calculator
Calculate areas of various shapes
Health Calculators
BMI Calculator
Most UsedCalculate Body Mass Index
Calorie Calculator
Calculate daily calorie needs
Water Intake
Calculate daily water requirements
Body Fat Calculator
Estimate body fat percentage
Sports Calculators
Calories Burned
Calculate calories burned during exercise
Running Pace
Calculate running pace and times
One Rep Max
Calculate maximum lifting capacity
Training Zones
NewCalculate heart rate training zones