Find Your Descent
Descent planning calculators for pilots
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Top of Descent
Formula
Distance (NM) = (Alt to lose ÷ 1000) × 3
Time (min) = (Distance × 60) ÷ Ground Speed
Uses a standard 3° descent angle.
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Disclaimer: These calculators are provided for informational purposes only and use standard rule-of-thumb formulas. They are not a substitute for proper flight planning, regulatory compliance, or pilot judgment. The Pilot in Command is solely responsible for verifying all information.