📏 Unit Converter - Length, Weight, Volume, Area, Time
Convert units of length, weight, volume, area, and time. Free online unit converter with support for metric and imperial units.
Available Units - Length
What is a Unit Converter?
A unit converter is a tool that converts measurements from one unit to another within the same category. It's essential for converting between metric and imperial systems, or between different units within the same system.
Our unit converter supports five main categories: length, weight, volume, area, and time. Each category includes both metric (SI) and imperial units, making it easy to convert between different measurement systems.
How to Use Our Unit Converter
- Select Category: Choose the category of units you want to convert (length, weight, volume, area, or time).
- Choose Units: Select the source unit (From) and target unit (To) from the dropdown menus.
- Enter Value: Type the value you want to convert in the "From" field.
- View Result: The converted value will appear automatically in the "To" field (if auto-convert is enabled).
- Swap Units: Click the swap button (⇄) to quickly exchange the source and target units.
- Copy Result: Click the copy button to copy the converted value to your clipboard.
Supported Categories
📏 Length
Convert between meters, kilometers, centimeters, millimeters, miles, yards, feet, inches, and nautical miles. Essential for distance measurements, construction, and travel.
⚖️ Weight
Convert between kilograms, grams, milligrams, metric tons, pounds, ounces, stones, and US tons. Useful for cooking, shipping, and scientific measurements.
💧 Volume
Convert between liters, milliliters, cubic meters, US gallons, quarts, pints, cups, fluid ounces, and UK gallons. Perfect for cooking, chemistry, and liquid measurements.
📐 Area
Convert between square meters, square kilometers, square centimeters, hectares, acres, square miles, square yards, square feet, and square inches. Essential for real estate, construction, and land measurements.
⏰ Time
Convert between seconds, minutes, hours, days, weeks, months, and years. Useful for scheduling, project planning, and time calculations.
Common Use Cases
🌍 International Travel
Convert distances, weights, and temperatures when traveling between countries that use different measurement systems. Essential for understanding road signs, weather, and local measurements.
👨🍳 Cooking & Baking
Convert recipe measurements between metric and imperial units. Convert cups to milliliters, pounds to grams, and ounces to grams for accurate cooking.
🏗️ Construction & Engineering
Convert measurements for construction projects, engineering calculations, and technical specifications. Essential for working with international standards and documentation.
📚 Education & Learning
Learn unit conversions, practice calculations, and understand the relationship between different measurement systems. Great for students and educators.
Frequently Asked Questions
What's the difference between metric and imperial units?
Metric units (SI) are based on powers of 10 and are used internationally. Imperial units (used primarily in the US and UK) have historical origins and use different conversion factors. Our converter handles both systems seamlessly.
How accurate are the conversions?
Our converter uses precise conversion factors and displays results with up to 6 decimal places (trailing zeros are removed). The accuracy is suitable for most practical purposes, including scientific and engineering applications.
Can I convert between different categories?
No, you can only convert within the same category (e.g., length to length, weight to weight). Each category has its own set of compatible units. Switch categories using the category buttons at the top.
What's the base unit for each category?
Length: meter, Weight: kilogram, Volume: liter, Area: square meter, Time: second. All conversions are calculated through these base units for accuracy.
Is my data stored or transmitted?
No, all conversions happen entirely in your browser. We never see, store, or transmit any of your values. Your privacy is completely protected.