Units Converter
Convert between measurement units
1000
1 Metros → Milímetros
100
1 Metros → Centímetros
0.001
1 Metros → Kilómetros
39.370079
1 Metros → Pulgadas
Conversor de Unidades
Convierte entre diferentes unidades de medida: longitud, peso, temperatura, área, volumen, tiempo y almacenamiento digital. Todas las conversiones se realizan localmente.
Online Unit Converter - Length, Weight and Temperature
Available conversion categories
This tool covers the conversions people actually need: length (metres, centimetres, kilometres, inches, feet, yards, miles); weight and mass (grams, kilograms, pounds, ounces, tonnes); temperature (Celsius, Fahrenheit, Kelvin); volume (litres, millilitres, US and UK gallons, fluid ounces); area (square metres, square feet, acres, hectares); time (seconds, minutes, hours, days); and data (bytes, KB, MB, GB, TB in both base 1000 and base 1024). Each category includes the units used most in everyday and professional contexts.
Metric versus imperial: when to use each
The metric system (SI) is the worldwide scientific standard and the official system in most countries. The imperial system is used mainly in the United States, partially in the UK, and in a few specific industries. In web development you meet both: American APIs return temperatures in Fahrenheit or distances in miles, UX for US users needs familiar units, and scientific data always uses SI. This tool makes working across both straightforward, which matters most when you internationalise an application.
Precision and rounding in conversions
Conversions between systems rarely produce round numbers. One inch is exactly 2.54 cm by definition, but one pound is 0.45359237 kg. This tool lets you configure the decimal places to balance precision against readability. Two or three decimals are plenty for everyday use, while scientific or engineering work may need more. Note that some conversion factors are irrational, so perfect decimal precision is mathematically impossible.
If you work with this tool, you will probably also find these useful Number Base Converter, JSON to CSV, CSV to JSON, Color Converter.
Frequently asked questions
Why does temperature conversion use a different formula?
Length and weight are proportional conversions where you multiply by a factor. Temperature is not, because the scales have different zero points. Celsius to Fahrenheit requires F = (C x 9/5) + 32, and Kelvin is Celsius plus 273.15. That is why you cannot convert 0 C to Fahrenheit by multiplication alone.
What is the difference between KB and KiB?
KB, the kilobyte, officially means 1000 bytes under the SI system. KiB, the kibibyte, means 1024 bytes in the binary system that computing actually uses. Historically KB was used for 1024, which caused lasting confusion. This tool offers both: 1 MB is 1,000,000 bytes, the figure hard drive marketing uses, while 1 MiB is 1,048,576 bytes, which is what your operating system reports.
Are US and UK gallons different?
Yes. The US gallon is about 3.785 litres while the imperial UK gallon is about 4.546 litres, roughly 20% larger. Fluid ounces differ too. This tool distinguishes between them, since confusing the two is a common mistake that ruins recipes, fuel consumption figures and technical specifications.
Why do some conversions show so many decimals?
The conversion factors between metric and imperial are rarely round numbers: one mile is exactly 1.609344 km by definition. We show enough decimals to stay precise, and you can configure fewer for display. The internal calculations always run at full floating point precision.