Length Conversion
How to Use UnitConvertTool
Converting units is simple and takes just three easy steps.
Select Unit Category
Choose from over 30 unit categories such as length, weight, temperature, volume, or any other measurement type you need.
Enter Your Value
Type the value you want to convert. You can enter any number, including decimals and negative values.
Get Instant Results
Your conversion result appears immediately. Copy it or continue converting other values.
Common Conversions
Choose from our comprehensive collection of conversion tools
Length Conversion
Convert between meters, centimeters, inches, feet, and more
Area Conversion
Convert between square meters, square feet, acres, hectares, and more
Weight Conversion
Convert between kilograms, grams, pounds, ounces, and more
Temperature Conversion
Convert between Celsius, Fahrenheit, and Kelvin
Volume Converter
Convert between different volume units including liters, milliliters, gallons, cups, and more.
Time Converter
Convert between different time units including seconds, minutes, hours, days, weeks, months, and years.
Speed Converter
Convert between different speed units including meters per second, kilometers per hour, miles per hour, knots, and more.
Energy Converter
Convert between different energy units including joules, calories, kilowatt-hours, and more.
Supported Unit Categories
Our comprehensive converter supports a wide range of measurement units across multiple categories for all your conversion needs.
Length
Meter, Kilometer, Mile, Inch, Foot, Yard, Centimeter, Millimeter, Nautical Mile
Weight
Kilogram, Gram, Pound, Ounce, Ton, Milligram, Stone
Temperature
Celsius, Fahrenheit, Kelvin
Volume
Liter, Milliliter, Gallon, Quart, Pint, Cup, Fluid Ounce, Cubic Meter
Area
Square Meter, Square Kilometer, Square Mile, Acre, Hectare, Square Foot, Square Inch
Time
Second, Minute, Hour, Day, Week, Month, Year, Millisecond
Why Choose UnitConvertTool
Trusted by millions of users worldwide for accurate and reliable unit conversions.
Accurate Formulas
All conversions use precise mathematical formulas verified by experts to ensure accuracy.
Free Forever
No registration, no subscription, no hidden fees. Our tool is completely free to use.
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About UnitConvertTool
UnitConvertTool.com is a free online unit conversion tool designed to help students, engineers, scientists, and everyday users convert between different measurement units quickly and accurately. Our mission is to provide the most comprehensive and user-friendly conversion experience on the web.
We support over 30 categories of unit conversions, including common measurements like length, weight, and temperature, as well as specialized units for engineering, physics, and electronics. Each conversion uses precise mathematical formulas to ensure accuracy.
Whether you're working on a school project, engineering calculation, or just need to convert a recipe measurement, UnitConvertTool is here to help. Our clean, intuitive interface makes unit conversion simple and hassle-free.
Start Converting Now
Choose a category and begin your unit conversion journey.