Convert from yoctometers to millimeters

Conversion Information

To convert from yoctometers to millimeters, multiply by 1e-21

1 ym = 1e-21 mm

Converter

About the Units

yoctometer (ym)

The smallest theoretically conceived length unit.

millimeter (mm)

A tiny length unit equal to 0.001 meters, used in precision engineering.

Learn more about millimeters

Common Conversions

  • 1 ym = 1e-21 mm
  • 1e21 ym = 1 mm