Floor Area Ratio (FAR) Calculator
Estimate Floor Area Ratio (FAR), building density, and development potential for residential, commercial, industrial, and mixed-use construction projects.
What Is Floor Area Ratio?
Floor Area Ratio (FAR) is the relationship between the total usable floor area of a building and the size of the land parcel on which it is built. It is widely used in zoning regulations, urban planning, and property development.
How FAR Is Calculated
The ratio is determined by dividing the total building floor area by the total lot area.
| FAR Value | Development Density |
|---|---|
| Below 0.5 | Low Density |
| 0.5 – 1.5 | Moderate Density |
| 1.5 – 3.0 | High Density |
| Above 3.0 | Very High Density |
Benefits of FAR Planning
- Supports zoning compliance.
- Improves land-use efficiency.
- Helps maximize development potential.
- Assists with feasibility studies.
- Provides accurate density analysis.
Common Applications
- Urban planning
- Commercial developments
- Residential projects
- Mixed-use developments
- Property investment analysis
Frequently Asked Questions
What does a higher FAR mean?
A higher FAR generally indicates more building area relative to the land size and therefore greater development density.
Why is FAR important?
FAR is used by municipalities and planners to control population density, building mass, and land-use efficiency.
Can FAR vary by location?
Yes. FAR limits are determined by local zoning laws and development regulations.

