Wind Chill Calculator
Updated recently with improved calculation accuracy and expanded examples.
Calculate apparent temperature (wind chill) from air temperature and wind speed. Useful for cold-weather sailing.
Last updated: August 28, 2026
Author: OceanCalc Editorial Team · Publisher: Albor Digital LLC
Wind Chill Calculator
Result
Feels like (°F)
25
Formula
Wind chill (°F) = 35.74 + 0.6215×T − 35.75×V^0.16 + 0.4275×T×V^0.16What is the Wind Chill Calculator?
Wind chill is the apparent temperature felt on exposed skin due to wind. It reflects how quickly the body loses heat in wind.
Wind chill reflects heat loss from exposed skin. At sea, spray and moisture can make it feel colder than the formula suggests.
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Overview
A Wind Chill Calculator is used in maritime navigation to perform precise calculations based on established nautical formulas. This tool allows you to apply your inputs to the stated nautical relationships using accurate and standardized methods.
Key takeaways
- Wind Chill Calculator — A Wind Chill Calculator is used in maritime navigation to perform precise calculations based on established nautical formulas.
- Formula — NWS wind chill formula: combines temperature and wind speed to estimate how cold it feels.
- How to use — Type your figures into the form; outputs refresh so you can compare cases quickly.
How to use
Type your figures into the form; outputs refresh so you can compare cases quickly.
Formula
Core relationship: Wind chill (°F) = 35.74 + 0.6215×T − 35.75×V^0.16 + 0.4275×T×V^0.16
NWS wind chill formula: combines temperature and wind speed to estimate how cold it feels. Only applies when temp ≤ 50°F and wind ≥ 3 mph.
Wind chill reflects heat loss from exposed skin. At sea, spray and moisture can make it feel colder than the formula suggests.
Practical use cases
Wind Chill Calculator: passage planning, crew briefings, instrument-to-chart unit checks, and verifying mental math when tired or in rough weather.
Tips for accuracy
- Match input units to your chart, GPS, or instrument before trusting the Wind Chill Calculator.
- Cross-check important outputs with a second method or crew when visibility or motion is poor.
- Treat simplified models (waves, radar horizon, etc.) as estimates; real conditions vary.
Practical examples
- 35°F, 15 mph → ~25°F feels like
- 20°F, 25 mph → ~3°F feels like
Frequently Asked Questions
What is wind chill?
Wind chill is the apparent temperature felt on exposed skin due to wind. It reflects how quickly the body loses heat in wind.
Does wind chill affect boats?
Wind chill affects people on deck and can increase risk of hypothermia. It does not change the actual water or air temperature for equipment.
How accurate is this calculator?
It uses standard maritime formulas and noted approximations. Use it for planning and checks; confirm safety-critical decisions with official sources.
Can I use this on mobile?
Yes. Layouts are responsive for phones and tablets on deck or in the cockpit.
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These calculations are based on standard maritime navigation formulas used in seamanship, chart navigation, and marine route planning.
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Results are estimates for educational purposes only and should not be used for real navigation decisions.