// multi-utility computation suite · offline · instant · precise
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tool.lightning-rod-protection Calculator
Calculates the protected radius of a lightning rod at a given height using the rolling sphere method (60° protection angle), and shows unprotected zones. The protection radius equals the rod height for the 45° method; the rolling sphere method (IEC 62305) gives more precise results.
Inputs
Structure Height M
Vertical measurement. For health calculators, typically standing height without shoes.
Rod Height M
Vertical measurement. For health calculators, typically standing height without shoes.
Lightning Days
Reference formula or conversion factor shown for context.