Huling update: 2026-04-14Kontak: developer@captaincalc.com.tr
Batayan ng sanggunian: mga konsepto ng IMO/COLREG/STCW, nautical practice, aprubadong dokumento ng barko, at mga tala ng kalkulasyon ng CaptainCalc. Laging i-verify ang mga desisyon sa operasyon gamit ang opisyal na sanggunian.
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Distance to Horizon at Radar Range
Kalkulahin ang visual at radar horizon base sa Height of Eye (metro).
Formula reference & notes
Visual horizon (Bowditch): D = 2.07 × √HE (NM, HE in metres)
Radar horizon: D = 2.21 × √HE (NM, HE in metres)
⚠ Radar horizon shown is for own antenna height only. The actual detectable range of a target also depends on the target's own height above sea level. To find the combined radar range, calculate separately for own antenna and target height, then add the two results (Dipping Distance method).
Radar horizon: D = 2.21 × √HE (NM, HE in metres)
⚠ Radar horizon shown is for own antenna height only. The actual detectable range of a target also depends on the target's own height above sea level. To find the combined radar range, calculate separately for own antenna and target height, then add the two results (Dipping Distance method).
Ginagawa ng CaptainCalc ang lahat ng kalkulasyong ito nang mabilis at offline — 523+ na na-validate na formula, binuo ng isang dating kapitan, sa iyong Android.