Common Questions
Number.Net is a comprehensive online resource providing a wide variety of free calculators, converters, and generators for mathematical, financial, digital, and everyday tasks. Our goal is to offer powerful, accurate, and easy-to-use tools accessible directly from your browser.
Yes, all the calculators, converters, and generators currently available on Number.Net are free for personal, non-commercial use according to our Terms of Service. Some telephone lookup tools are informational placeholders requiring integration with third-party services that may have associated costs.
Number.Net primarily operates using client-side JavaScript, meaning calculations generally happen directly in your browser. We do not actively store the data you enter into the tools on our servers. Some tools may use browser local storage for features like history (e.g., Coin Flipper, Dice Roller) which stays on your device. Tools requiring external APIs (like Currency Converter, Number Facts, or the telephone lookup placeholders) interact with third-party services; please refer to our Privacy Policy for details on data handling and third-party interactions.
We strive for accuracy by using standard, widely accepted formulas and algorithms (e.g., standard loan calculations, Euclidean algorithm for GCD, compound interest formulas, cryptographic hash standards via Web Crypto API). However, results are provided "as is" without warranty. Financial projections (like the Retirement Calculator) depend heavily on the assumptions you input. Digital representations (like floating-point numbers in JavaScript) can sometimes have minor precision limitations. For critical financial or engineering applications, always verify results with a qualified professional or alternative sources. Please see our Terms of Service for disclaimers.
Accessing real-time, accurate information like caller ID or current phone carrier requires querying restricted telecommunications databases. This data is not publicly available for free due to privacy regulations and costs associated with accessing these databases. The pages for these tools on Number.Net are currently informational placeholders demonstrating the concept. To get actual lookup results, you would need to integrate a specialized third-party data provider service, which typically involves subscriptions and compliance checks.
This is a common point of confusion!
- **KB, MB, GB (Decimal/SI):** These units use powers of 1000. 1 KB = 1000 Bytes, 1 MB = 1,000,000 Bytes. Hard drive manufacturers typically use these units.
- **KiB, MiB, GiB (Binary/IEC):** These units use powers of 1024. 1 KiB = 1024 Bytes, 1 MiB = 1,048,576 Bytes. Operating systems (like Windows, macOS, Linux) usually measure file sizes and RAM using these binary units, although they might confusingly display the label as "KB" or "MB".
We appreciate your feedback! Please use our Contact Us page to report any problems you encounter with a specific tool or to suggest new calculators, converters, or generators you'd find useful.