Quickly calculate a key metric for zoning and urban planning.
For Preliminary Estimation Only
This tool is based on standard code values (e.g., from the International Building Code - IBC) and does not account for local amendments, jurisdictional differences (such as those in California), or older code versions. You are solely responsible for verifying all calculations with your local building authority and official code documents before use in any real-world application. This is not a substitute for professional code analysis by a qualified individual.
Note: Floor Area Ratio is unit-agnostic. You can use square feet or square meters for your calculation, as long as both the Building Area and Site Area use the same unit.
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