Open Area Percentage Calculator

How to Use the Calculator

1. Enter the Total Area of the region you want to measure (in square feet).
2. Enter the Obstacle Area (in square feet) - this is the area covered by obstacles, buildings, plants, or any non-open space.
3. Click the Calculate button to compute the open area percentage.
4. The results will show both the percentage of open area and the actual open area in square feet.

When to Use This Calculator

This calculator is useful in various fields including:

• Landscaping and garden design to plan open spaces
• Architecture for planning building layouts
• Urban planning for open space management
• Event planning for outdoor venues
• Agriculture for field management

Example Calculation

If you have a garden with a total area of 500 sq ft, and there are obstacles (like a shed and trees) covering 150 sq ft, the open area percentage would be:

Open Area = 500 sq ft - 150 sq ft = 350 sq ft

Open Area Percentage = (350 / 500) × 100% = 70%

This means 70% of your garden is open space suitable for planting, walking, or other activities.