Free online calculators for mathematics, finance, health, and daily life. Calculate percentages, BMI, loans, mortgages, investments, GPA, and more with our comprehensive suite of 26 professional calculators.
Percentage Calculator
Calculate percentages
Age Calculator
Calculate age from birthdate
Date Calculator
Date arithmetic operations
Time Calculator
Time duration calculations
BMI Calculator
Body Mass Index calculator
BMR Calculator
Basal Metabolic Rate
Calorie Calculator
Daily calorie needs
Body Fat Calculator
Estimate body fat percentage
Ideal Weight Calculator
Calculate ideal weight
Grade Calculator
Calculate grades and marks
GPA Calculator
Grade Point Average
Loan Calculator
Loan payment calculator
Mortgage Calculator
Mortgage payment calculator
Investment Calculator
Investment returns calculator
Compound Interest
Compound interest calculator
Simple Interest
Simple interest calculator
ROI Calculator
Return on Investment
Break Even Calculator
Break-even analysis
Tip Calculator
Restaurant tip calculator
Discount Calculator
Calculate discounts
Tax Calculator
Tax calculation tool
Salary Calculator
Salary conversions
Unit Converter
Multi-unit converter
Currency Converter
Exchange rate converter
Scientific Calculator
Scientific calculations
Standard Deviation
Statistical calculations