Sleeping Bag Temperature Calculator
Find the right sleeping bag temperature rating based on the lowest expected temperature, sleeper type, and altitude.
How to Use the Sleeping Bag Calculator
- Enter the lowest expected temperature at night in Celsius.
- Select your sleeper type (warm, average, or cold).
- Enter the altitude of your campsite in meters.
- Click Calculate to see the recommended comfort and limit ratings.
Anwendungsfälle
- •Choosing a sleeping bag for a specific camping destination.
- •Planning for high-altitude mountaineering.
- •Comparing sleeping bag ratings for cold-weather camping.
- •Deciding between a 3-season and a winter bag.
Formel
Effective Temp = lowest temp + sleeper adjustment + altitude adjustment (−1°C per 1000 m). Comfort = limit + 5°C.
Häufig gestellte Fragen
What is the difference between comfort and limit rating?
Comfort rating is for a standard female sleeper. Limit rating is for a standard male sleeper in a curled position. Comfort is typically 5°C warmer than limit.
Why does altitude affect temperature rating?
Temperature drops approximately 1°C per 1,000 m of altitude gain. At 3,000 m, you need a bag rated 3°C colder than the forecasted temperature.
What is a cold sleeper?
Cold sleepers tend to feel chilly and need a warmer-rated bag. Warm sleepers run hot and can use a lighter bag for the same conditions.