Signal Mirror Calculator

Name: Signal Mirror
Author: Tomáš Jašek

Calculate with this free signal mirror calculator directly in your browser. No signup, no ads, no tracking — works offline.

Sun Angle from Horizon (°)

Distance to Target (km)

Mirror Size (cm)

Observer Angle (°)

💡 Tip: Position mirror so sun reflects directly at target. Adjust angle to create 1-2 second flashes. Visible up to 160 km away on clear days.