Free Online Tools & Calculators

Fast, accurate, and free. No sign-up, no downloads — just the answers you need.

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Financial Calculators

Mortgage, loans, tips, savings, retirement, and more.

  • Mortgage Calculator
  • Loan Payoff
  • Compound Interest
  • Tip Calculator
  • Debt Snowball
  • Car Payment
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Everyday Tools

Percentages, dates, conversions, fuel costs, and GPA.

  • Percentage Calculator
  • Age Calculator
  • Unit Converter
  • Date Difference
  • Fuel Cost
  • GPA Calculator
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Generators

QR codes, passwords, random numbers, colors, and UUIDs.

  • QR Code Generator
  • Password Generator
  • Color Picker
  • Lorem Ipsum
  • UUID Generator
  • Random Number
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Construction Calculators

Square footage, concrete, paint, flooring, mulch, and more.

  • Square Footage
  • Concrete Calculator
  • Paint Calculator
  • Flooring Calculator
  • Mulch Calculator
  • Wallpaper Calculator
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Health Calculators

BMI, calories, macros, water intake, and due dates.

  • BMI Calculator
  • Calorie Calculator
  • Macro Calculator
  • Water Intake
  • Due Date Calculator