Unit Converter
Convert between different units of measurement
Unit Converter
Convert between different units of measurement. Select a category, choose your units, and enter a value to convert.
Conversion Formula
1 = 1
How to use the Unit Converter
- •Select a category from the available options: length, weight/mass, temperature, speed, volume, area, or data storage.
- •Enter a value in the source unit field. The tool accepts integers and decimals.
- •Choose your source and target units from the dropdown menus. The conversion is calculated instantly as you type.
- •Read the result displayed in the output field. The tool shows the full precision value so you can round as needed for your use case.
What is Unit Conversion?
Unit conversion is the process of expressing the same physical quantity in a different unit of measurement. Every conversion relies on a known ratio (a conversion factor) between two units. For example, 1 inch = 2.54 centimeters, so converting inches to centimeters means multiplying by 2.54.
Most unit conversions are simple multiplication or division. However, temperature conversions between Celsius, Fahrenheit, and Kelvin involve both multiplication and addition because these scales have different zero points:
- •Celsius to Fahrenheit:
F = (C x 9/5) + 32 - •Fahrenheit to Celsius:
C = (F - 32) x 5/9 - •Celsius to Kelvin:
K = C + 273.15
The metric system (SI) makes many conversions trivial because it uses powers of 10: 1 kilometer = 1,000 meters, 1 kilogram = 1,000 grams. The imperial system, used primarily in the United States, has less consistent ratios (12 inches per foot, 3 feet per yard, 5,280 feet per mile), making a converter tool especially valuable.
Data storage units follow binary prefixes: 1 kilobyte (KB) = 1,024 bytes (using binary convention) or 1,000 bytes (using SI convention). The IEC introduced unambiguous binary prefixes -- kibibyte (KiB), mebibyte (MiB), gibibyte (GiB) -- but the traditional KB/MB/GB terminology remains widespread.
Common use cases
- •Cooking and recipes: Convert between metric and imperial measurements (grams to ounces, milliliters to cups) when following recipes from different countries.
- •International travel: Convert temperatures (Celsius to Fahrenheit), distances (kilometers to miles), and weights (kilograms to pounds) when visiting countries using different measurement systems.
- •Engineering and construction: Convert between units when working with specifications from different standards (millimeters to inches for hardware, PSI to bar for pressure).
- •Software development: Convert data storage units (bytes to megabytes, gigabytes to terabytes) when planning storage capacity, analyzing bandwidth, or setting file size limits.
- •Fitness and health: Convert between pounds and kilograms for weight tracking, or miles and kilometers for running distances.
FAQ
Q: Are the conversions exact? A: Most conversions use the exact defined ratios (e.g., 1 inch = exactly 2.54 cm). Temperature conversions and some derived units use floating-point arithmetic, so results may have minor rounding at extreme precision.
Q: Why do I see different values for KB in different tools? A: There are two conventions: 1 KB = 1,000 bytes (SI/decimal) and 1 KB = 1,024 bytes (binary). This tool notes which convention it uses. Operating systems often mix the two, which is why a "500 GB" hard drive shows as ~465 GB in your file manager.
Q: Can I chain conversions? A: The tool converts between any two units in the same category directly. You do not need to convert to an intermediate unit first.
Is my data safe?
Yes. This tool runs entirely in your browser. Your data is never sent to our servers.
How to use the Unit Converter
- Select a category from the available options: length, weight/mass, temperature, speed, volume, area, or data storage.
- Enter a value in the source unit field. The tool accepts integers and decimals.
- Choose your source and target units from the dropdown menus. The conversion is calculated instantly as you type.
- Read the result displayed in the output field. The tool shows the full precision value so you can round as needed for your use case.
What is Unit Conversion?
Unit conversion is the process of expressing the same physical quantity in a different unit of measurement. Every conversion relies on a known ratio (a conversion factor) between two units. For example, 1 inch = 2.54 centimeters, so converting inches to centimeters means multiplying by 2.54.
Most unit conversions are simple multiplication or division. However, temperature conversions between Celsius, Fahrenheit, and Kelvin involve both multiplication and addition because these scales have different zero points:
- Celsius to Fahrenheit:
F = (C x 9/5) + 32 - Fahrenheit to Celsius:
C = (F - 32) x 5/9 - Celsius to Kelvin:
K = C + 273.15
The metric system (SI) makes many conversions trivial because it uses powers of 10: 1 kilometer = 1,000 meters, 1 kilogram = 1,000 grams. The imperial system, used primarily in the United States, has less consistent ratios (12 inches per foot, 3 feet per yard, 5,280 feet per mile), making a converter tool especially valuable.
Data storage units follow binary prefixes: 1 kilobyte (KB) = 1,024 bytes (using binary convention) or 1,000 bytes (using SI convention). The IEC introduced unambiguous binary prefixes -- kibibyte (KiB), mebibyte (MiB), gibibyte (GiB) -- but the traditional KB/MB/GB terminology remains widespread.
Common use cases
- Cooking and recipes: Convert between metric and imperial measurements (grams to ounces, milliliters to cups) when following recipes from different countries.
- International travel: Convert temperatures (Celsius to Fahrenheit), distances (kilometers to miles), and weights (kilograms to pounds) when visiting countries using different measurement systems.
- Engineering and construction: Convert between units when working with specifications from different standards (millimeters to inches for hardware, PSI to bar for pressure).
- Software development: Convert data storage units (bytes to megabytes, gigabytes to terabytes) when planning storage capacity, analyzing bandwidth, or setting file size limits.
- Fitness and health: Convert between pounds and kilograms for weight tracking, or miles and kilometers for running distances.
FAQ
Q: Are the conversions exact? A: Most conversions use the exact defined ratios (e.g., 1 inch = exactly 2.54 cm). Temperature conversions and some derived units use floating-point arithmetic, so results may have minor rounding at extreme precision.
Q: Why do I see different values for KB in different tools? A: There are two conventions: 1 KB = 1,000 bytes (SI/decimal) and 1 KB = 1,024 bytes (binary). This tool notes which convention it uses. Operating systems often mix the two, which is why a "500 GB" hard drive shows as ~465 GB in your file manager.
Q: Can I chain conversions? A: The tool converts between any two units in the same category directly. You do not need to convert to an intermediate unit first.
Is my data safe?
Yes. This tool runs entirely in your browser. Your data is never sent to our servers.