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Conversores de unidades

Conversões rápidas e precisas em 14 categorias e mais de 652 pares de unidades — comprimento, peso, temperatura, volume e mais. Resultados na hora, sem cadastro.

Converter categories

Comprimento Convert between metric and imperial length and distance units. Peso e Massa Convert between grams, kilograms, pounds, ounces and more. Temperatura Convert between Celsius, Fahrenheit and Kelvin. Volume Convert litres, gallons, cups, pints and cooking measures. Área Convert square meters, acres, hectares, square feet and more. Velocidade Convert km/h, mph, m/s, knots and feet per second. Armazenamento Digital Convert bytes, KB, MB, GB, TB and bits (decimal). Tempo Convert seconds, minutes, hours, days, weeks and years. Pressão Convert pascals, bar, psi, atmospheres and torr. Energia Convert joules, calories, kilowatt-hours and BTU. Ângulo Convert degrees, radians, gradians and arc units. Potência Convert watts, kilowatts, horsepower and BTU per hour. Frequência Convert hertz, kilohertz, megahertz, gigahertz and RPM. Força Convert newtons, kilonewtons, pound-force and kilogram-force.

About these converters

Unit conversion is one of those jobs that is trivial until it is not. Swapping metres for feet is a single multiplication, but a recipe in US cups, a spec sheet in psi, a drive advertised in gigabytes and a thermostat in Fahrenheit all trip people up for different reasons — and the answer usually needs to be right, not roughly right. These converters cover 14 categories and 652 unit pairs, from everyday length and weight to pressure, energy and frequency.

Each pair has its own page, and each page is built to answer the question properly rather than just spit out a number. You get the conversion itself, the formula behind it, worked examples at useful sizes, and a reference table you can scan without typing anything. That matters because the interesting cases are rarely a clean ratio: temperature scales have different zero points, so they need a formula rather than a multiplier; US and UK gallons are genuinely different volumes; and weight and mass are not the same idea even though everyday speech treats them as one.

Everything runs in your browser, so conversions are instant, work on a phone, and nothing you type is uploaded anywhere. There is no sign-up, no limit on how many you do, and no app to install. Pick a category below, or jump straight to a specific pair — every conversion in every category has a permanent page you can bookmark or share.