Arc Geometry Calculator
Compute arc length, chord, sagitta, radius, and sector area from minimal inputs. Useful for profiling, slotting, and inspection where circular segments appear.
Units:
Result A mm
Formula: Let ΔH = (H2 − H1). Then
A = √(2R·ΔH − ΔH²), with 0 ≤ ΔH ≤ 2R. A is the horizontal distance from the centerline to the arc at height H2.
Arc…dotted = extension
Radius R
Horizontal distance A at height H2; H1 marks arc bottom.