Rack Unit Capacity Calculator
Calculate remaining rack units from rack height and the user-entered total height of installed equipment.
A QUICK WALKTHROUGH
How to use this tool
- Enter measured or specified values in the displayed units.
- Review the assumptions and excluded factors.
- Calculate locally in your browser.
Formula and scope
Remaining U = rack height U − Σ installed equipment U. This is a dimensional count only; clearances and weight are excluded. This does not certify code compliance, safety, equipment performance, or a link budget.
Privacy
Inputs are calculated locally and are not uploaded.
GOOD TO KNOW
Common questions
Does this approve equipment sizing?
No. It applies the displayed arithmetic only.