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Free Online Calculators

Professional-grade calculator tools for finance, health, education, and business. All calculators are free, accurate, and work instantly in your browser.

19+ Free ToolsNo Registration RequiredWorks Offline

Most Popular Calculators

Calculator Categories

Financial Calculators

Mortgage, loan, investment, tax, and business financial tools

8 tools available

Health & Fitness

BMI, calorie, age, and wellness calculation tools

2 tools available

Educational Tools

Grade calculators, scientific tools, and academic utilities

2 tools available

Business Calculators

Salary, tax, ROI, and business planning calculators

12 tools available

All Calculator Tools

Crypto Price Tracker

Track real-time cryptocurrency prices, market caps, and portfolio performance. Monitor Bitcoin, Ethereum, and thousands of cryptocurrencies with live charts, price alerts, and portfolio management.

Finance
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Aspect Ratio Calculator

Calculate missing dimensions, resize images and videos proportionally, or convert between different aspect ratios. Supports common ratios like 16:9, 4:3, and golden ratio.

Design
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Salary Calculator

Convert between hourly, monthly, and annual salary with tax considerations

Finance
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Currency Converter

Convert between currencies with real-time exchange rates

Finance
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Mortgage Calculator

Calculate monthly mortgage payments, interest, and affordability with detailed breakdown

Finance
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Grade Calculator

Calculate final grades, GPA, and weighted averages for students

Education
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Investment Calculator

Calculate compound interest, future value, and investment returns

Finance
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Tax Calculator

Calculate income tax, deductions, and tax refunds for different brackets

Finance
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BMI Calculator

Calculate Body Mass Index, ideal weight, and health status with detailed analysis

Health
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Percentage Calculator

Calculate percentages, percentage change, increase/decrease, and percentage of a number

Math
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Age Calculator

Calculate exact age in years, months, days, and more. Find your zodiac sign and next birthday

Utilities
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Calorie Calculator

Calculate daily calorie needs, BMR, TDEE, and macro requirements for your fitness goals

Health
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Loan Calculator

Calculate loan payments, interest rates, and amortization schedules for various loan types

Finance
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Tip Calculator

Calculate tips and split bills with customizable tip percentage and party size

Finance
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Unit Converter

Convert between units of length, weight, temperature, and more

Calculator
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Scientific Calculator

Advanced calculator with scientific functions, memory, and history

Calculator
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Date Calculator

Calculate date differences, add/subtract days, and date formatting

Calculator
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Free Numerology Calculator

Discover your destiny with our comprehensive numerology calculator! Choose between sacred Indian Chaldean or International Pythagorean systems. Get your Life Path, Expression, and Soul Urge numbers with detailed personality analysis, career guidance, and relationship compatibility insights.

Games
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Free Vedic Kundli Calculator

Create your complete Vedic birth chart instantly! Get accurate rashi (moon sign), nakshatra (birth star), and lagna (ascendant) calculations with detailed dosha analysis. Includes traditional gemstone recommendations, spiritual remedies, and marriage compatibility insights from authentic Indian Jyotish astrology.

Games
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Professional Online Calculator Tools

Why Choose Our Calculators?

  • • 100% free with no registration required
  • • Instant, accurate calculations
  • • Mobile-friendly responsive design
  • • Privacy-focused - no data stored
  • • Professional-grade algorithms
  • • Regular updates and improvements

Popular Calculator Types

  • Financial: Mortgage, loan, investment calculations
  • Health: BMI, calorie, fitness tracking
  • Business: Tax, salary, ROI planning
  • Educational: Grade, scientific, math tools
  • Conversion: Unit, currency, measurement
  • Date/Time: Age, duration, timezone tools