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Moment of Inertia Converter

Convert moment of inertia between kg m2, g cm2, kg cm2, lb ft2, lb in2, oz in2 and slug ft2.

What this tool does

Convert moment of inertia between kg m2, g cm2, kg cm2, lb ft2, lb in2, oz in2 and slug ft2. Type an amount in kilogram square meters, choose the units, and the tool converts it to pound square feet. It offers 7 moment of inertia units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one: Kilogram square meter, Kilogram square centimeter, Gram square centimeter, Pound square foot, Pound square inch, Ounce square inch, Slug square foot. Starts as Kilogram square meter.
  • To: Choose one of the same 7 units as "From". Starts as Pound square foot.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from kilogram square meters to pound square feet:

  • 1 kg·m² ≈ 23.73036 lb·ft²
  • 5 kg·m² ≈ 118.651802 lb·ft²
  • 10 kg·m² ≈ 237.303604 lb·ft²
  • 50 kg·m² ≈ 1,186.51802 lb·ft²
  • 100 kg·m² ≈ 2,373.03604 lb·ft²

Multiply the number of kilogram square meters by about 23.73036 to get pound square feet. The factor follows from exact definitions. It has more digits than fit here, so it is shown rounded.

Sources: Kilogram square meter: SI Brochure, 9th edition (2019). Pound square foot: NIST SP 811 (2008), Appendix B.9.

Limitations

  • Converts mass moment of inertia units only. It does not work out the inertia of a shape from its mass and size.

FAQs

Q: How many lb ft2 is one kg m2?
A: About 23.73 lb ft2.
Q: How many g cm2 is one kg m2?
A: One kg m2 is 10,000,000 g cm2.

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