Calculadora de ponto de orvalho
Calculate dew point, relative humidity, or temperature using the Magnus formula. Supports °C, °F, and K with comfort-level assessment.
Calcular
Choose a calculation type, enter your values, and click Calculate Now to see dew point results with comfort levels and step-by-step solutions.
Resultado
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Solução passo a passo
Guia do usuário completo
O que é ponto de orvalho?
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.
Fórmula Magno
α = (A × T) / (B + T) + ln(RH / 100)
Td = (B × α) / (A − α)
Onde A = 17,27, B = 237,7 °C, T = temperatura (°C), RH = umidade relativa (%), Td = ponto de orvalho (°C)
4 Calculation Types
Ponto de orvalho
Enter air temperature and relative humidity. Get dew point with comfort level.
Umidade relativa
Insira a temperatura do ar e o ponto de orvalho. Obtenha umidade relativa (%).
Temperatura
Enter dew point and relative humidity. Get the air temperature.
Converter unidades
Convert between °C, °F, and K.
Níveis de conforto do ponto de orvalho
| Ponto de Orvalho (°C) | Nível de conforto | Descrição |
|---|---|---|
| < 10 | Seco | Very comfortable, dry air. |
| 10 – 16 | Confortável | Pleasant conditions. |
| 16 – 18 | Ligeiramente úmido | Most people comfortable. |
| 18 – 21 | Úmido | Some discomfort, sticky feeling. |
| 21 – 24 | Muito úmido | Uncomfortable, oppressive. |
| > 24 | Extremamente úmido | Dangerous, heat exhaustion risk. |
Notas importantes
- Dew point is always ≤ air temperature.
- A fórmula de Magnus é precisa para temperaturas de -45 °C a 60 °C.
- Relative humidity must be between 0 % and 100 %.
- Dew point is a better comfort indicator than RH alone.