Metric Converter Logo
Metric Converter

Convert units instantly and with precision. Use our free online unit converter to switch between length, weight, area, pressure, and more. Perfect for engineering, science, travel, and everyday use

How to use
1

Select Category: Choose the unit type from the menu.

2

Enter Value: Input the number you want to convert in the dedicated box.

3

Set Units: Select your Source Unit (from) and Target Unit (to).

4

Get Result: Click on any result to quickly copy the value.

Limitations
  • Supports up to 20 digits (including decimal point)
  • Up to 10 decimal places
  • Very large or small numbers will be displayed in scientific notation
FAQ

Are the conversion results from Metric Converter accurate? What is the data source?

Metric Converter calculates using internationally recognized official conversion factors and the latest definitions of the International System of Units (SI). This ensures that all conversion results are highly accurate and reliable.

What unit categories does Metric Converter support?

Metric Converter covers dozens of major physical quantity units, including: Length, Weight, Mass, Temperature, Area, Volume, Speed, Time, Pressure, Energy, and more. You can easily convert between major measurement systems like Metric, Imperial, and US Customary.

Is there a fee or registration required to use Metric Converter?

No. Metric Converter is completely free and can be used without any registration or login. You can perform unlimited unit conversions anytime, anywhere.

How can I ensure I get the most precise conversion value?

Metric Converter provides high-precision calculation results by default. Simply enter the value to be converted in the input box, and then select the starting unit and the target unit. If you need a different decimal place precision, please check the result display area.