Free Online Calculators & Converters
Simple, fast, and reliable tools for everyday calculations. No sign-up required, works on any device.
All Our Free Tools
Choose from our collection of calculators and converters designed to help you with everyday tasks.
Date Calculator
Calculate days between dates, add or subtract days from any date
Number to Words
Convert numbers to written words in multiple formats
Percentage Calculator
Calculate percentages, increases, decreases, and more
Time Zone Converter
Convert times between different time zones worldwide
Unit Converter
Convert between length, weight, temperature, and more units
Word Counter
Count words, characters, sentences, and paragraphs in text
Case Converter
Convert text to uppercase, lowercase, title case, and more
Why Use HandyUtils.net?
We've built these tools with simplicity and speed in mind, so you can get your answers quickly.
Lightning Fast
Our tools load in under a second and calculate results instantly. No waiting, no frustration.
100% Free & Private
No sign-up required, no data collection, no ads. Your calculations stay on your device.
Works Everywhere
Fully responsive design that works perfectly on desktop, tablet, and mobile devices.
Your Go-To Resource for Online Calculations
Welcome to HandyUtils.net, your trusted destination for free online calculators and converters. Whether you need to calculate the number of days between two dates, convert numbers to words for writing checks, or find the percentage of a value, our tools are designed to make your life easier.
Our collection of utilities covers a wide range of everyday needs. The Date Calculator helps you determine the exact number of days, weeks, or months between any two dates—perfect for project planning, tracking deadlines, or calculating how many days until an important event. The Number to Words Converter transforms any number into its written form, making it invaluable for writing checks, legal documents, or formal correspondence.
Need to work with percentages? Our Percentage Calculator handles everything from simple percentage calculations to finding percentage increase or decrease between two values. For those working across different regions, the Time Zone Converter instantly shows you the current time in any city around the world, eliminating confusion when scheduling international calls or meetings.
The Unit Converter supports conversions between different measurement systems—whether you're converting miles to kilometers, pounds to kilograms, or Fahrenheit to Celsius. Writers and students will appreciate our Word Counter, which provides instant word, character, and paragraph counts for any text. And the Case Converter quickly transforms text between uppercase, lowercase, title case, and other formats.
Built for Speed and Simplicity
Every tool on HandyUtils.net is built with performance in mind. We use modern web technologies to ensure pages load almost instantly, and all calculations happen right in your browser—no server round-trips required. This means you get your results immediately, without any delays.
We believe tools should be simple to use. That's why each calculator features a clean, intuitive interface with clear labels and instant results. There's no learning curve—just enter your values and get your answer. Whether you're a student, professional, or anyone in between, our tools are designed to be accessible and easy to understand.
Privacy-First Approach
Your privacy matters. Unlike many other online tools, we don't require you to create an account or share any personal information. All calculations are performed locally in your browser, and we don't store or transmit your data anywhere. You can use our tools with complete peace of mind, knowing your information stays private.
Ready to Get Started?
Choose a tool above and start calculating. No sign-up needed—it's completely free.
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