Calculator Tools/Unit Converter
Unit Converter
Convert between various units including length, weight, volume, and temperature
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Unit Converter Guide
Learn how to effectively use the unit converter
What is Unit Converter?
The Unit Converter is a tool that converts values between different measurement units. It supports 8 categories: length, weight, volume, area, temperature, speed, time, and data storage. Perfect for cooking, travel, science projects, or any situation where you need to convert between metric and imperial systems.
How to Use
- Select a category (e.g., Length, Weight, Temperature)
- Choose the source unit you want to convert from
- Enter the value you want to convert
- Select the target unit and see the instant result
Practical Tips
- Use the swap button to quickly reverse the conversion direction
- Temperature conversion uses special formulas - not just multiplication
- Data storage units use binary (1024) base, not decimal (1000)
Accuracy & Limitations
All calculations are performed in your browser with high precision. Results are rounded to 6 decimal places for display. For very large or very small numbers, scientific notation is used automatically.
Frequently Asked Questions
What's the difference between US and UK gallons?
US gallons (3.785 liters) and UK/Imperial gallons (4.546 liters) are different measurements. The UK gallon is about 20% larger. This tool includes both units - make sure to select the correct one for your needs. US gallon is commonly used in the United States, while UK gallon is used in the UK and some Commonwealth countries.
How does temperature conversion work differently?
Unlike other unit conversions that use simple multiplication, temperature conversion uses formulas. Celsius to Fahrenheit: F = C × 9/5 + 32. Celsius to Kelvin: K = C + 273.15. These formulas are built into the converter, so you just need to enter your value.
Why do data storage units use 1024 instead of 1000?
Computer systems use binary (base-2), where 2^10 = 1024 is a convenient boundary. 1 KB = 1024 bytes, 1 MB = 1024 KB, etc. The decimal-based units (using 1000) are called kibibyte (KiB), mebibyte (MiB), etc., but the binary definitions are still common in operating systems and storage devices.
How accurate are the conversions?
All conversions use precise conversion factors and JavaScript's 64-bit floating point numbers. Results are displayed to 6 significant figures. For most practical applications, this level of precision exceeds what you'll need. Very large or small numbers automatically use scientific notation.
Can I convert between metric and imperial units?
Yes, this tool supports both metric (meters, kilograms, liters) and imperial/US customary units (feet, pounds, gallons). Simply select your source unit, enter the value, and choose your target unit. Common conversions like miles to kilometers, pounds to kilograms, and gallons to liters are all available.