Unit Converter
Convert between length, weight, temperature, and volume units instantly. 100% client-side, no data stored.
Supported Categories
Length
Meter (m), Kilometer (km), Centimeter (cm), Millimeter (mm), Mile (mi), Yard (yd), Foot (ft), Inch (in)
Weight
Kilogram (kg), Gram (g), Milligram (mg), Pound (lb), Ounce (oz), Tonne (t)
Temperature
Celsius (c), Fahrenheit (f), Kelvin (k)
Volume
Liter (l), Milliliter (ml), Cubic Meter (m3), Gallon (US) (gal), Pint (pt), Cup (cup)
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Everything You Need to Know
Complete guide, features, use cases, and frequently asked questions
What is a Unit Converter? Complete Guide
A unit converter is a free online tool that converts measurements between different units of length, weight, temperature, and volume. Our 2026 unit converter goes beyond basic tools with 4 major categories, 25+ units, instant accurate conversion, metric and imperial support, and 100% client-side processing. Whether you need to convert meters to feet, kilograms to pounds, celsius to fahrenheit, or liters to gallons, this tool provides instant accurate conversions.
How to Use the Unit Converter
- Select the category you want to convert (Length, Weight, Temperature, or Volume)
- Enter the amount/value you want to convert in the "Amount" field
- Select the source unit from the "From" dropdown menu
- Select the target unit from the "To" dropdown menu
- Click the "Convert" button to see instant conversion results
- View the converted value displayed with full precision
- Change category or units to perform additional conversions
- Click "Reset" to clear values and start fresh
- No registration needed - completely free unlimited conversions
Key Features & Benefits
4 Conversion Categories
Convert Length (meters, feet, miles), Weight (kg, pounds), Temperature (C, F, K), and Volume (liters, gallons).
25+ Supported Units
Comprehensive coverage of metric and imperial units across all categories for maximum flexibility.
Instant Accurate Conversion
Get precise conversion results immediately with full decimal precision for scientific accuracy.
Temperature Special Handling
Proper temperature conversion between Celsius, Fahrenheit, and Kelvin with correct formulas.
100% Client-Side Processing
All conversions happen in your browser. Your data never touches our servers - complete privacy.
No Registration Required
Use immediately without account creation. Completely free with unlimited conversions.
Common Use Cases
International Travel
Convert local measurements to familiar units while traveling. Understand distances, weights, and temperatures abroad.
Cooking & Recipes
Convert recipe measurements between metric and imperial units for accurate cooking and baking.
Engineering & Science
Perform accurate unit conversions for technical calculations, research, and engineering projects.
Education & Homework
Help students learn unit conversions and complete homework assignments with instant verification.
Construction & DIY
Convert measurements for home improvement, construction projects, and material calculations.
Fitness & Health
Track weight, height, and body measurements across different unit systems for fitness goals.
Why Choose Our Unit Converter?
- ✓Supports 4 major categories with 25+ units
- ✓Instant accurate conversions with full precision
- ✓Free tool - no subscription or hidden costs
- ✓Privacy-first - data never leaves your device
- ✓Both metric and imperial systems supported
- ✓Special temperature conversion handling
- ✓Works on desktop, tablet, and mobile devices
- ✓No registration or account required
- ✓Perfect for students, travelers, and professionals
- ✓Clean interface with clear results display
Unit Converter Comparison - How We Compare to Competitors
| Feature | 10xTools Unit Converter | UnitConverters.net | RapidTables | Google Unit Converter | ConvertUnits.com | OnlineConversion |
|---|---|---|---|---|---|---|
| Price (Free Forever) | ✅ 100% Free | ✅ Free | ✅ Free | ✅ Free | ❌ Freemium | ✅ Free |
| 4 Categories | ✅ 4 Categories | ✅ Many | ✅ Many | ✅ Many | ✅ Many | ✅ Many |
| 25+ Units | ✅ 25+ Units | ✅ 100+ Units | ✅ 50+ Units | ✅ Many | ✅ 80+ Units | ✅ 60+ Units |
| Metric & Imperial | ✅ Both | ✅ Both | ✅ Both | ✅ Both | ✅ Both | ✅ Both |
| Temperature Formulas | ✅ Formulas | ✅ Formulas | ✅ Formulas | ✅ Formulas | ✅ Formulas | ✅ Formulas |
| No Registration | ✅ No Signup | ✅ No Signup | ✅ No Signup | ✅ No Signup | ❌ Pro Required | ✅ No Signup |
| Privacy (Client-Side) | ✅ 100% Private | ❌ Server Upload | ❌ Server Upload | ❌ Server Upload | ❌ Server Upload | ❌ Server Upload |
| No Ads | ✅ No Ads | ❌ Has Ads | ❌ Has Ads | ✅ No Ads | ❌ Has Ads | ❌ Has Ads |
| Unlimited Usage | ✅ Unlimited | ✅ Unlimited | ✅ Unlimited | ✅ Unlimited | ❌ Limited | ✅ Unlimited |
| High Precision | ✅ 4 Decimals | ✅ High | ✅ High | ✅ Medium | ✅ High | ✅ High |
✅ = Feature Available | ❌ = Not Available or Limited
Frequently Asked Questions
What units does the converter support?
Length: meters, kilometers, centimeters, millimeters, miles, yards, feet, inches. Weight: kilograms, grams, milligrams, pounds, ounces, tonnes. Temperature: Celsius, Fahrenheit, Kelvin. Volume: liters, milliliters, cubic meters, gallons, pints, cups.
How accurate are the conversions?
All conversions use precise conversion factors and display results to 4 decimal places. Temperature conversions use exact formulas for C/F/K conversion.
Can I convert between metric and imperial?
Yes! The converter supports both metric (meters, kilograms, celsius, liters) and imperial (feet, pounds, fahrenheit, gallons) systems.
Is my data secure?
Yes, 100% secure. All conversions happen in your browser - your data never touches our servers. You can verify in the Network tab.
Do I need to create an account?
No account required. The converter is completely free and anonymous. Just visit and start converting instantly.
How do I convert temperature?
Select "Temperature" category, enter your value, choose From unit (C/F/K), choose To unit, and click Convert. The tool handles all formulas automatically.
Can I use this for scientific calculations?
Yes! The converter provides full precision with 4 decimal places, suitable for scientific and engineering calculations.
Does it work on mobile devices?
Yes! The converter is fully responsive and works perfectly on smartphones and tablets with touch-friendly interface.
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