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Arch Calculator
Calculate circular arch radius, arc length, and opening area
Formulas:
• Radius (R) = (W2 + 4H2) / (8H)
• Where W is Span (Width) and H is Rise (Height).
• Radius (R) = (W2 + 4H2) / (8H)
• Where W is Span (Width) and H is Rise (Height).
Arch Dimensions
Calculation Results
⚠️ Arch geometry calculations assume a symmetrical circular segment. For structural load-bearing arches, always consult structural engineering guidelines and local masonry building codes.