Convert a value

Length

Results update as you type.

Result

1,000m

1 km = 1,000 m

Display: up to 15 significant digits. Copy retains JavaScript number precision.

How to use Unit Converter

  1. Choose length, weight, temperature, area, or data size.
  2. Enter the value and select its source and destination units.
  3. Read the result, swap units if useful, and copy the value.

Try an example

Convert 1 kilometer to meters.

1,000 meters. For data sizes, decimal MB and binary MiB use different conversion factors.

What to know before using Unit Converter

Choose a category, enter a number, and select source and destination units. Results update automatically; swap exchanges the units while retaining your input. Length supports negative displacements. Weight, area, and data size must be non-negative; temperatures cannot fall below absolute zero. KB, MB, GB, and TB use powers of 1,000; KiB, MiB, GiB, and TiB use powers of 1,024. Results display up to 15 significant digits; copying retains JavaScript floating-point precision. Out-of-range values are rejected. All processing stays in your browser.