Online calculators for everyone
Over 3000 free calculators for solving everyday tasks. Math, finance, health, and much more.
Calculators
Choose a calculator category to solve your tasks
Math
Calculators for algebra, geometry, trigonometry and statistics
Finance
Loans, mortgages, investments, taxes and budgeting
Health
BMI, calories, pregnancy and medical calculations
Construction
Material calculations, areas, volumes and estimates
Physics
Mechanics, electricity, optics and thermodynamics
Cooking
Recipes, unit converters and proportions
Auto
Fuel consumption, insurance, taxes and maintenance
Fitness
Workouts, nutrition, progress and recovery
Other
Various useful calculators and tools
Popular Calculators
Loan Calculator
Calculate monthly payment, overpayment and full loan repayment schedule. Compare annuity and differentiated payments.
Mortgage Calculator
Calculate mortgage loan with down payment, insurance and additional expenses.
Universal Loan Calculator
Calculate any type of loan with full amortization schedule, extra payment scenarios, biweekly options, and payment comparison. Supports mortgage, auto, personal, student, and business loans.
Investment & Savings Calculator
Comprehensive investment planning: compound interest, retirement (with 4% rule), FIRE calculator, ROI analysis, goal-based savings, and emergency fund planning.
Currency Converter
Convert 30+ world currencies, calculate travel budgets, compare rates, and calculate cross rates with fee estimations.
BMI Calculator
Calculate your Body Mass Index (BMI) and check if your weight is in a healthy range.
Calorie Calculator
Calculate daily calorie intake for maintenance, weight loss or weight gain.
Pregnancy Calculator
Calculate pregnancy term, due date and fetal development stages.
Why Millions Choose UseCalcPro
We create calculators that help make the right decisions. Buying a home, budget planning, health monitoring — we have a tool for any task.
Instant Results
Get accurate calculations in seconds. No waiting — enter data and see results immediately.
100% Free
All calculators are completely free. No registration, no hidden fees, no ads.
Works Everywhere
Responsive design for any device. Use on phone, tablet, or computer.
Clear Explanations
Each calculator includes detailed descriptions of formulas and calculation methods.
Frequently Asked Questions
Answers to the most common questions about our calculators
About UseCalcPro Service
UseCalcPro is a modern platform with over 3000 free online calculators for solving everyday and professional tasks. Our tools cover math, finance, health, construction, physics, and many other areas.
We create calculators that save your time and help make informed decisions. Each calculator is accompanied by detailed explanations of formulas and calculation methods, making them useful not only for getting results but also for learning.
Start Calculating Right Now
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