露点計算機
Calculate dew point, relative humidity, or temperature using the Magnus formula. Supports °C, °F, and K with comfort-level assessment.
計算する
Choose a calculation type, enter your values, and click Calculate Now to see dew point results with comfort levels and step-by-step solutions.
結果
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段階的な解決策
完全なユーザーガイド
露点とは何ですか?
The dew point is the temperature at which air becomes saturated with water vapor and condensation starts to form. It is always less than or equal to the air temperature. Dew point is a better indicator of comfort than relative humidity alone, because it directly measures the amount of moisture in the air. This calculator uses the Magnus formula, widely used in meteorology and HVAC applications.
マグナスの公式
α = (A × T) / (B + T) + ln(RH / 100)
Td = (B × α) / (A − α)
ここで、A = 17.27、B = 237.7 °C、T = 温度 (°C)、RH = 相対湿度 (%)、Td = 露点 (°C)
4 Calculation Types
露点
Enter air temperature and relative humidity. Get dew point with comfort level.
相対湿度
気温と露点を入力します。相対湿度 (%) を取得します。
温度
Enter dew point and relative humidity. Get the air temperature.
単位の変換
Convert between °C, °F, and K.
露点快適レベル
| 露点 (℃) | 快適さのレベル | 説明 |
|---|---|---|
| < 10 | ドライ | Very comfortable, dry air. |
| 10 – 16 | 快適 | Pleasant conditions. |
| 16 – 18 | やや湿気のある | Most people comfortable. |
| 18 – 21 | 湿気が多い | Some discomfort, sticky feeling. |
| 21 – 24 | 非常に湿気が多い | Uncomfortable, oppressive. |
| > 24 | 非常に湿気が多い | Dangerous, heat exhaustion risk. |
重要な注意事項
- Dew point is always ≤ air temperature.
- マグナスの公式は、-45 °C ～ 60 °C で正確です。
- Relative humidity must be between 0 % and 100 %.
- Dew point is a better comfort indicator than RH alone.