Convert Length, Weight, Temperature & Volume

This converter covers four everyday categories: length (meter, kilometer, centimeter, millimeter, mile, foot and inch), weight (kilogram, gram, metric ton, pound and ounce), temperature (Celsius, Fahrenheit and Kelvin) and volume (liter, milliliter, gallon, quart and cup). The number you type is read as the category’s base unit, meters for length, kilograms for weight, liters for volume and Celsius for temperature, and the rows below show that amount in every other unit. Conversions use the international standard factors and results are rounded to four decimals. If your source unit is something else, convert it to the base unit first, for example enter 5 feet as 1.524.

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How to use it

1. 1

   Pick the category: length, weight, temperature or volume.

2. 2

   Enter the number in that category’s base unit (meter, kilogram, liter or Celsius).

3. 3

   Read the equivalent values in the list below and take the one you need.

Frequently asked questions

Which unit do I enter the number in?

The base unit of the category: meters for length, kilograms for weight, liters for volume and Celsius for temperature. For “180 cm”, enter 1.8.

Which gallon and cup are used?

US gallon and quart, and the US customary cup of about 236 milliliters. The imperial gallon is roughly 4.546 liters and is not in this table.

How precise are the results?

Standard international factors are used and values are shown to four decimals, which is enough for everyday use, cooking and ordinary engineering.