Navigation Light Calculator

Calculate navigation light requirements, visibility range, and power consumption per COLREGS

Input Parameters

Results

--
Min Visibility Range
nm
--
Lights Required
--
Total Power
watts
--
Current @ 12V
amps

Reference

COLREGS Rule 22 - Minimum visibility ranges: <12m: 1nm sidelights, 2nm masthead 12-20m: 2nm sidelights, 3nm masthead >20m: 2nm sidelights, 5nm masthead LED lights draw ~85% less power than incandescent