EVERYDAY CLARITY
Physics Moment Of Inertia Calculator
What is the mass moment of inertia of a solid uniform disk? Enter the stated inputs to calculate this model.
Your result
Mass moment of inertia
kg·m²
Result for the values shown.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| Disk mass (kg) | Enter disk mass in kg; use the same basis as the other measurements. |
| Disk radius (m) | Enter the radius, which is half the diameter. |
Understanding your result
Read Mass moment of inertia (kg·m²) in the units and model stated on this page. The formula inertia=m*r*r/2 defines the relationship; measurement accuracy and model applicability are separate from numerical precision.
Common mistakes
- Entering the diameter where the radius is requested.
Check your calculation
- Use the worked example as a known reference case, then change one input at a time and check the direction and units of the response.
Calculation checks, sources and review limits
What is the mass moment of inertia of a solid uniform disk?
What is the mass moment of inertia of a solid uniform disk? Enter the stated inputs to calculate this model.
Common uses
- What is the mass moment of inertia of a solid uniform disk
How it works
inertia=m*r*r/2
Worked example
Enter Disk mass: 4 kg; Disk radius: 2 m. Results: Mass moment of inertia: 8 kg·m².