Unit and Data Converter
Choose a measurement card, enter a value, and get a readable conversion instantly.
Speed conversion uses meters per second as the shared base unit.
What is included?
This page keeps the main calculator focused, while the category cards let users jump between common everyday and technical conversions without leaving the page.
SpeedDistanceMetric / Imperial LengthFluids / VolumeWeight / MassPowerForceEnergyTemperatureAreaPressureAngleData Storage
How to use this converter
Choose a category (length, weight, volume, temperature, or data). Enter a value next to its unit. The other units in that category update automatically as you type.
Frequently asked questions
How precise are the conversions?
Conversions use standard factors and round to a reasonable number of decimal places for everyday use. For scientific or engineering work, verify with a domain-specific tool.
How is temperature different from other units?
Temperature uses an offset, not just a scale factor. Celsius, Fahrenheit, and Kelvin each have a different zero point, so the formula is more than simple multiplication.
Is a kilobyte 1,000 or 1,024 bytes?
Both definitions exist. Storage manufacturers usually use the decimal form (1 KB = 1,000 bytes), while operating systems often report binary form (1 KiB = 1,024 bytes).
Can I convert mixed units?
Convert each component separately, then sum. For example, 5 ft 8 in becomes 60 in + 8 in = 68 in, then convert 68 inches to centimeters.
Why is fluid ounces different from ounces?
Fluid ounces measure volume; ounces measure weight. They are not interchangeable except by coincidence with water at certain temperatures.
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How to use the Unit & Data Converter
Convert between metric and imperial units for length, weight, volume, and temperature; convert digital data units (MB to GB, etc.); useful for cooking, travel, engineering, and science.
Example workflow
Select the category (e.g. Length), enter a value in your source unit (e.g. 5 miles), and pick the target unit (e.g. kilometres). The result appears instantly.
Common search topics
- unit conversion
- length converter
- weight converter
- temperature converter
- data converter
Frequently asked questions
What unit categories does this converter support?
Length (metres, feet, miles, inches, cm, km), weight (kg, lbs, oz, grams, stones), volume (litres, gallons, cups, fl oz), temperature (Celsius, Fahrenheit, Kelvin), and digital data (bytes, KB, MB, GB, TB).
How do I convert Celsius to Fahrenheit?
The formula is °F = (°C × 9/5) + 32. For quick mental math: double the Celsius value and add 30 gives a rough estimate. The converter gives the precise result.
How many kilometres in a mile?
1 mile = 1.60934 kilometres. 1 kilometre = 0.62137 miles.
Why do US and UK gallons differ?
A US gallon is 3.785 litres; a UK (imperial) gallon is 4.546 litres — about 20% larger. The converter distinguishes between the two where applicable.
Can I use this for cooking conversions?
Yes. Volume conversions cover cups, tablespoons, teaspoons, millilitres, and fluid ounces — covering most recipe unit needs. For weight-based baking, use the weight category.
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People also ask
How do I convert pounds to kilograms?
Divide pounds by 2.20462 to get kilograms, or multiply kilograms by 2.20462 to get pounds. A quick mental approximation: divide pounds by 2.2. For example, 150 lbs ÷ 2.2 ≈ 68 kg. The converter handles the precise calculation instantly — useful for international travel, medical records in different systems, or shipping weight limits.
What is the difference between US and imperial measurements?
The US customary system and the British imperial system share many unit names but differ in volumes. A US fluid ounce is slightly larger than an imperial fluid ounce (29.57 mL vs 28.41 mL). A US gallon is 3.785 L; an imperial gallon is 4.546 L — nearly 20% larger. For cooking, a US cup is 240 mL and an imperial cup is 284 mL. These differences matter when scaling international recipes or comparing fuel economy figures.
How do I convert square feet to square meters?
Multiply square feet by 0.0929 to get square metres. 100 sq ft = 9.29 sq m. This conversion is common in real estate (listing price per sq m vs sq ft), flooring material orders across countries, and building permit applications in metric countries. The inverse — sq m to sq ft — multiplies by 10.764.
Real-world scenarios
Converting a recipe from cups to grams
Volume-to-weight conversion for baking depends on the ingredient: 1 cup of all-purpose flour ≈ 120g; 1 cup of sugar ≈ 200g; 1 cup of butter ≈ 227g. Recipes from the UK and Europe typically give weights in grams — more accurate than volume since density varies. Use the weight converter for common baking ingredients and check a dedicated ingredient density table for precise gram equivalents.
Comparing fuel economy between US and European cars
US cars use miles per gallon (MPG); European cars use litres per 100 kilometres (L/100km). To convert: divide 235.2 by MPG to get L/100km. A 30 MPG car uses 7.84 L/100km. A European car rated at 6 L/100km is equivalent to about 39 MPG. This matters when comparing imported vehicles, reading international auto reviews, or estimating fuel costs across countries.
Converting data storage for cloud and file transfers
File sizes shown in gigabytes (GB) by your OS may differ from advertised storage capacity — manufacturers use 1 GB = 1,000,000,000 bytes (decimal), while computers use 1 GB = 1,073,741,824 bytes (binary, sometimes shown as GiB). A 500 GB hard drive holds about 465.7 GiB as your OS reports it. The data converter handles both SI and binary prefixes for accurate file size planning.