Unit Converter

📐 Unit Converter Tool

Convert between length, weight, volume, and more with precision and speed

Fast • Accurate • No Installation Required

📊 Select Unit Category
🔢 Enter Value to Convert
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🎯 Decimal Precision
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About Unit Converter

A Unit Converter is a practical tool that helps users convert values between different measurement units. It is widely used in education, engineering, science, travel, and everyday calculations.

This tool provides instant conversions between various units of measurement, including length, weight, volume, temperature, and area, with precision and accuracy.

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How to Use This Tool

1
Select the unit category
Choose from Length, Weight, Volume, Temperature, or Area
2
Enter the value to convert
Type or paste any number (decimals supported)
3
Choose "From" and "To" units
Select source and target measurement units
4
Click Convert and use results
View, copy, download, or share the conversion

Why This Tool Is Useful

5 Categories
Length, Weight, Volume, Temperature, Area - all in one tool
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Precision Control
Choose decimal precision from 0 to 8 decimal places
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Mobile Friendly
Horizontal scrollable categories for perfect mobile experience
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Works Offline
All calculations happen locally in your browser

Unit Converter Tool • All calculations happen locally in your browser

Perfect for students, engineers, travelers, and everyday use • No installation required

What Is the Unit Converter?

The Unit Converter on All Unit Tools is a comprehensive, free online utility that instantly converts measurements between different units across multiple categories. Whether you're converting centimeters to inches, kilograms to pounds, Celsius to Fahrenheit, or kilometers per hour to miles per hour, this tool provides accurate results in real-time.

This tool solves the everyday problem of dealing with different measurement systems used around the world. It eliminates the need for mental math, complex formulas, or searching through conversion tables, making unit conversion quick, accurate, and accessible to everyone.

Who Needs a Unit Converter?

From students tackling homework problems to professionals working with international clients, unit conversion is a universal need. Our tool bridges the gap between metric and imperial systems, scientific and everyday measurements, and countless specialized units.

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Students & Educators

For math, science, engineering, and cooking classes. Perfect for homework, lab reports, research projects, and understanding different measurement systems.

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Cooks & Bakers

Convert between cups, grams, ounces, milliliters, tablespoons, and teaspoons. Follow international recipes with confidence and precision.

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Construction & DIY

Convert between feet and meters, square feet and square meters, pounds and kilograms for materials, and temperature for curing times.

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Travelers & Shoppers

Convert currency, clothing sizes, distance, temperature, and weight while traveling or shopping internationally both online and offline.

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Scientists & Engineers

Convert between scientific units, pressure measurements, energy units, power measurements, and specialized engineering units with precision.

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Fitness Enthusiasts

Convert between kilograms and pounds for weight, kilometers and miles for running distance, and Celsius and Fahrenheit for sauna or pool temperatures.

How to Use the Unit Converter on All Unit Tools

1

Select Category

Choose from our comprehensive categories: Length, Weight, Temperature, Area, Volume, Speed, Time, Pressure, Energy, Power, Data Storage, or Cooking Measurements.

💡 Start with the most common: Length, Weight, or Temperature

2

Enter Your Value

Type the number you want to convert into the input field. You can use decimal points, negative numbers, or large values. The converter accepts any numerical input.

Example: Enter "25.5" or "1000" or "-40"

3

Choose Units

Select the unit you're converting FROM (like "Centimeters") and the unit you're converting TO (like "Inches"). You'll instantly see the converted result.

Popular: cm to inches, kg to lbs, °C to °F

4

View & Copy Results

See your converted value appear instantly. Use the copy button to save results to your clipboard or reverse the conversion with one click.

Results update in real-time as you type!

Available Conversion Categories

📏 Length & Distance

Convert between meters, centimeters, millimeters, kilometers, inches, feet, yards, miles, nautical miles, and more.

Examples: cm→inches, km→miles, feet→meters

⚖️ Weight & Mass

Convert between kilograms, grams, milligrams, pounds, ounces, stones, tons, metric tons, carats, and grains.

Examples: kg→pounds, ounces→grams, stones→kg

🌡️ Temperature

Convert between Celsius, Fahrenheit, and Kelvin. Includes special conversions for cooking and scientific applications.

Examples: °C→°F, °F→°C, °C→Kelvin

🥄 Cooking & Volume

Convert between liters, milliliters, cups, tablespoons, teaspoons, fluid ounces, pints, quarts, gallons, and more.

Examples: cups→ml, tbsp→tsp, liters→gallons

📐 Area

Convert between square meters, square kilometers, square feet, square yards, acres, hectares, square miles, and more.

Examples: sq ft→sq m, acres→hectares

💨 Speed & Velocity

Convert between kilometers per hour, miles per hour, meters per second, feet per second, knots, and mach number.

Examples: km/h→mph, m/s→ft/s, knots→km/h

⌚ Time

Convert between seconds, minutes, hours, days, weeks, months, years, decades, and centuries with precision.

Examples: hours→minutes, days→weeks, years→months

💾 Digital Storage

Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes, and exabytes using binary and decimal prefixes.

Examples: GB→MB, TB→GB, MB→KB

Key Features of Our Unit Converter

Real-Time Conversion

See results instantly as you type. No need to press a button - conversions happen automatically, making the process fast and fluid.

High Precision Results

Calculations use precise conversion factors and show results with appropriate decimal places for each unit type.

Comprehensive Unit Coverage

Over 12 categories and hundreds of specific units covering everyday, scientific, engineering, and specialized measurements.

Mobile-Friendly Design

Works perfectly on smartphones and tablets. Use it in the kitchen, workshop, classroom, or anywhere you need quick conversions.

No Installation Required

Access directly from any browser - no apps to download, no accounts to create. It's always available when you need it.

Completely Free

Unlimited conversions at no cost. No usage limits, no premium tiers, no hidden fees. A truly free tool for everyone.

Frequently Asked Questions

How accurate are the conversions?

Our conversions use internationally recognized standards and precise conversion factors. For common conversions like length and weight, accuracy is to many decimal places. For temperature conversions, we use exact mathematical formulas (not approximations). Scientific and engineering conversions use standard values from organizations like NIST and ISO.

Can I convert between metric and imperial units?

Yes! This is one of our most common uses. You can easily convert between metric units (meters, grams, liters) and imperial/US customary units (feet, pounds, gallons). We also include less common conversions like stones (UK weight) and nautical miles (navigation).

Do you support scientific notation or very large/small numbers?

Yes, you can enter numbers in scientific notation (like 1.23e4 for 12,300) and the converter will handle them correctly. The tool also supports extremely large numbers (like astronomical distances) and very small numbers (like microscopic measurements).

How do I convert cooking measurements accurately?

We use standard cooking conversion factors. For dry ingredients, we provide weight-to-volume conversions based on average densities. For best baking results, we recommend using weight measurements (grams) rather than volume when precision matters. Our cooking category includes special conversions like "cups of flour to grams" with appropriate density factors.

Can I save my favorite conversions?

While we don't have a formal "favorites" system, you can bookmark specific conversion pages or use the copy feature to save results. The tool remembers your last used category and units during your browsing session, making it easy to return to frequent conversions.

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