Circular Bed Calculator — Round Flower Bed Area & Edging
Calculate area and edging for circular or semi-circular flower beds.
How We Calculate This
Full circle: Area = pi x radius². Semi-circle: half of full circle. Quarter circle: one quarter of full circle.
Edging length is the full perimeter of the bed, including straight edges for semi and quarter circles.
The 10% wastage allowance covers cuts and overlaps when installing curved edging.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates based on standard gardening guidelines. Results may vary with soil conditions, climate, and plant varieties.