Free Online Calculators & Converters

Manage your finances with comprehensive calculators for loans, investments, taxes, and more.

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  Mortgage Calculator
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  Loan Calculator
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  Investment Calculator
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  Sales Tax Calculator
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  Retirement Calculator
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  Savings Calculator
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  Credit Card Payoff Calculator
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• 🚗

  Car Loan Calculator
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Solve mathematical problems from basic arithmetic to advanced calculus and statistics.

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  Scientific Calculator
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• 📐

  Geometry Calculator
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  Statistics Calculator
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• ∫

  Calculus Calculator
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• 🎯

  Percentage Calculator
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• 🔺

  Algebra Calculator
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  Basic Calculator
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• 📈

  Graphing Calculator
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Track your health metrics, fitness goals, and medical calculations for better wellness.

• ⚖️

  BMI Calculator
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  Calorie Calculator
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  Heart Rate Calculator
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• 🤱

  Pregnancy Calculator
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• 🩺

  Blood Pressure Calculator
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• 📏

  Body Fat Calculator
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Professional engineering calculations for electrical, mechanical, and civil applications.

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  Electrical Calculator
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  Mechanical Calculator
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  Structural Calculator
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• 🌊

  Fluid Mechanics
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• 🔥

  Thermal Calculator
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Convert between different units of measurement, currencies, and data formats.

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  Length Converter
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• ⚖️

  Weight Converter
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  Temperature Converter
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• 💱

  Currency Converter
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• 🕐

  Time Converter
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• 📊

  Data Size Converter
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• 📐

  Area Converter
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• 🧊

  Volume Converter
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Essential business calculations for profit, growth, and financial analysis.

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  Profit Calculator
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  Growth Calculator
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• 💰

  Break-even Calculator
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• 🎯

  ROI Calculator
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• 💼

  Payroll Calculator
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• 📋

  Budget Calculator
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• 💸

  Cash Flow Calculator
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• 📉

  Depreciation Calculator
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