Flex Bend-Radius & Cycle-Life Calculator

Flex Bend-Radius & Cycle-Life Calculator

IPC-2223 minimum bend radius from your flex stack-up — with a build-tested safety margin.

IPC-2223 minimum bend radius

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Recommended radius (+25% margin)

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PCBark cycle-life tier

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Get this flex stack-up quoted →
Multipliers per IPC-2223: static 1-layer 6×, static 2+ 12×, dynamic 1-layer 100×, dynamic 2+ 100–150× total flex thickness. Add 20–30% for material lot and handling variation. Figures are design guidance, not a substitute for a DFM review.

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