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UNIT CONVERTER

Mass moment of inertia

Use the same axis of rotation.

Result

SI / metric also includes non-SI metric units. Check distinctions such as US and UK units.

Results in other units

Displayed values are rounded. Check the unit type and definition before use.

How to convert, examples and notes

About mass moment of inertia conversion

Choose the input and output units, then enter a number. The result updates on this device.

Conversion examples (rounded)

  • 1 kg·m² = 1,000,000 kg·mm²
  • 10 kg·m² = 10,000,000 kg·mm²

Some supported units: g·mm² · kg·mm² · kg·m² · lb·in² · lb·ft² (5 units in this category).

Use the same axis of rotation.

The nearby list shows the reference unit and up to two rows on either side. Expand it to see every unit. Check SI / metric, imperial / US customary and other definitions before important use.

How do you convert kg·mm² to kg·m²?

Divide kg·mm² by 1,000,000 to obtain kg·m², because the length component is squared.

  • 1 kg·m² = 1,000,000 kg·mm²
  • 1 g·mm² = 0.000000001 kg·m²
Can I compare values for different rotation axes?

Check that both values refer to the same rotation axis. Unit conversion alone does not account for a shifted axis or a different centre of mass.

Conversion table for 1 kg·m²

Fixed reference values, rounded to 10 significant digits. Use the converter above for your own value.

UnitName1 kg·m² equals
g·mm²Gram square millimetre1,000,000,000 g·mm²
kg·mm²Kilogram square millimetre1,000,000 kg·mm²
kg·m²Kilogram square metre1 kg·m²
lb·in²Pound square inch3,417.171898 lb·in²
lb·ft²Pound square foot23.7303604 lb·ft²