16 Best Free Online Dew Point Calculator Websites

Here is a list of the best free online dew point calculator websites. Dew Point is the temperature at which the water vapor begins to condense. This happens when humid air can not hold the water. Dew Point strongly depends on the moisture content in the air. Now, a Dew Point Calculator helps you find out this temperature limit.

In this post, I’m covering 16 websites where you can find a free dew point calculator. Almost all these calculators determine the dew point from the atmospheric temperature and the relative humidity. You just have to select the temperature scale (Celcius, Fahrenheit, or Kelvin) as per your data and insert that into the calculator. This gives you the dew point temperature. Some of these calculators offer additional data. This includes other atmospheric variables, preservation impact, dew point chart, etc. You can go through the post to check them out in detail.

My Favorite Dew Point Calculator

DPCalc.org is my favorite dew point calculator website on this list. This website helps you calculate the dew point quickly. It can also find the temperature or relative humidity when you know the dew point temperature. With that, it evaluates the impact of the dew point for preservation. It lets you compare the preservation quality of your environment with preservation metic to offset any impact. This preservation evaluation and offset metric can help you extend the preservation period of collection materials.

You can check our lists of other best free Online Air Density Calculator Websites, Online Wind Load Calculator Websites, and Online Light Pollution Map Websites.

DPCalc.org

DPCalc.org has a free online dew point calculator. This calculator has three scales for temperature, relative humidity, and dew point. At the top of that, you get the option to select which one value you want to calculate out of these three. Then you can slide the scales of the other two values to get the third one. This calculator also gives the preservation evaluation of the readings. It tells you the risk factor of four types of decays including Natural Aging, Mechanical Damage, Mold Risk, and Metal Corrosion. Then it also gives you the preservation metric to neutralize those risks. From there, you can take multiple readings and record the values. In the end, you can export the saved values to CSV.

Key Points:

• This calculator calculates dew point from Temperature and Relative Humidity.
• It can also find Temperature and Relative Humidity.
• It gives a Preservation Evaluation on Natural Aging, Mechanical Damage, Mold Risk, and Metal Corrosion.
• Get readings in degrees Celsius or Fahrenheit.
• Option to record values and export to CSV.

EasyCalculation.com

EasyCalculation is a free website that offers a wide variety of online calculators, converters, tutorials, and more. It has a dew point converter that you can use. This calculator takes temperature and relative humidity as input and gives you the dew point temperature. Along with the dew point, it also shows a preservation evaluation chart. The chart shows the impact of the calculated dew point on preservation. It covers four types of decays and also provides preservation metrics to offset the decays. Unlike any other website, you can get the code of this dew calculator. You can enter the dimension and copy the HTML code. Then you can use that code to add this calculator to your website.

Key Points:

• This calculator calculates dew point from Temperature and Relative Humidity.
• It gives a Preservation Evaluation on Natural Aging, Mechanical Damage, Mold Risk, and Metal Corrosion.
• Get readings in degrees Celsius or Fahrenheit.
• Get HTML code to add this dew point calculator to your website.

AssociatedEnvironmentalSystems.com

Associated Environmental Systems offers a free online dew point calculator. This is a simple calculator where you start by picking the unit of readings. You can go with Celsius or Fahrenheit. After that, you can add the temperature and relative humidity percentage. Based on that, this calculator gives you the dew point temperature. Along with that, it also generates a Full Dew Point Chart. This charts dew points for different temperature and relative humidity values. It also highlights the current reading on the chart.

Key Points:

• This calculator calculates dew point from Temperature and Relative Humidity.
• Option to get the readings in degrees Celsius or Fahrenheit.
• Generates a Full Dew Point Chart for the readings.

GoodCalculators.com

GoodCalculators is another website with a free dew point calculator. This calculator finds the dew point from the temperature and relative humidity. For that, first, you have to select the temperature unit as per your reading. It supports Celsius, Fahrenheit, and Kelvin. Then you can enter the values to get the dew point. It gives the dew in degrees Celsius, Fahrenheit, and Kelvin. Next to that, it generates a Dew Point Chart. Unlike the chart generated on AssociatedEnvironmentalSystems, this one covered the temperature and relative humidity values near to your calculations.

Key Points:

• This calculator calculates dew point from Temperature and Relative Humidity.
• Option to get the readings in degrees Celsius, Fahrenheit, or Kelvin.
• Generates a Dew Point Chart for the readings.

Suto-itec.com

Suto-itec offers a free online dew point calculator. This calculator has input fields for relative humidity, temperature, and pressure. You can surely get the dew point from relative humidity and temperature along. But adding pressure gives you correct readings of Absolute Humidity, Humidity Grade, Vapor Ratio (Volume), Saturation Vapor Pressure, and Partial Vapor Pressure. You can add two pressure values to compare the outcomes. And if you don’t know the relative humidity, you can use the known value of Absolute Humidity, Humidity Grade, Vapor Ratio (Volume), Saturation Vapor Pressure, or Partial Vapor Pressure instead.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• It can compare the outcomes for change in overpressure.
• The input reading must be degree Celcius.
• It also gives the Vapor Ratio (Volume), Saturation Vapor Pressure, and Partial Vapor.

KefaSystem.com

KefaSystem offers a free dew point calculator. This calculator determines the dew point from the relative humidity and the temperature. All you have to do is enter the percentage of relative humidity and the environmental temperature in degrees Celcius. Then it gives you the dew point in the result. Kefa sells condensation protection coatings for various types of surfaces. Thus it also gives an evaluation of the dew point result. There it lists the side effects of the dew point and how it can be prevented i.e. Kefa coatings.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• The input reading must be degree Celcius.
• It also finds the Vapor Pressure and Absolute Humidity.

TLK-Energy.de

TLK-Energy offers an online dew point calculator where you can find the dew point temperature based on your environmental condition. It takes temperature and relative humidity as input and then gives the dew point temperature. But make sure the temperature is in degrees Celcius only as it does not allow you to change that unit. Along with the dew point, it also gives you absolute humidity. On this website, you can also generate an hx-diagram. This diagram graphically illustrates changes in moist air conditions caused by warming, humidification, dehumidification, and cooling. You can determine the condition changes graphically from the diagram.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• It also finds the value of Absolute Humidity in g/m3.
• The calculator takes temperature readings in degrees Celcius only.
• It can also draw an hx-diagram to illustrate changes in moist air conditions.

 

Decatur.de

Decatur.de is another free website where you can use an online dew point calculator. This is a simple calculator that supports Celcius, Fahrenheit, and Kelvin temperature scales. You can pick a scale of your choice and then insert the values of temperature and relative humidity. With that, it gives the dew point temperature. It also finds the saturation vapor pressure. This calculator can adjust the dew point value for better accuracy.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• Users can adjust the accuracy with Relative Humidity.
• It supports degrees Celcius, Fahrenheit, and Kelvin temperature scales.
• It also gives the value of Saturation Vapor Pressure in kPa.

 

 

PlanetCalc.com

PlanetCalc is a free website that offers online calculators for Calendar, Time, Health, Engineering, Computer, Finance, Navigation, Maths, Physics, Chemistry, and more. It has a simple dew point calculator. You can add your temperature and relative humidity values to this calculator and get the dew point value. It does not use any temperature scale for measuring. That means you can enter the temperature value in Celcius, Fahrenheit, or Kelvin. The results will be on the same scale. Aside from that, it lets you share the results using a link. You can also get HTML or WordPress code to embed a widget on your website.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• It can calculate on Celcius, Fahrenheit, and Kelvin temperature scales.
• Option to share results with a link and a custom website widget.

OmniCalculator.com

OmniCalculator is a collection of online calculators that you can use for free. It has a dew point calculator that determines the value of due point from temperature and relative humidity. It supports Celcius, Fahrenheit, and Kelvin temperature scales. You can pick the temperature scale of your choice and then add the relative humidity in percent, permille, or basic point. It gives you the dew point in degrees Celcius. But you can change the scale to convert the value to Fahrenheit or Kelvin. After the calculation, it lets you share the results via a sharing link.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• It can calculate on Celcius, Fahrenheit, and Kelvin temperature scales.
• Users can also change the relative humidity measurement to percentage, permille, or basic point.
• Option to share results with a link.

Calcualator.net

Calculator.net is a free website where you can find the dew point from temperature and relative humidity. All you have to do is open its Dew Point Calculator and insert your values. You can change the temperature scale to Celcius, Fahrenheit, or Kelvin as per your values. After the calculation, it shows the dew point on all three temperature scales. Along with the dew point, it also gives you the values of Water Vapor Pressure, Saturation Water Vapor Pressure, Absolute Humidity, Moisture Volume Concentration, and Moisture Weight Concentration.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• It can calculate on Celcius, Fahrenheit, and Kelvin temperature scales.
• It also calculates Water Vapor Pressure, Saturation Water Vapor Pressure, Absolute Humidity, Moisture Volume Concentration, and Moisture Weight Concentration.

AJDesigner.com

AJDesigner offers Science, Maths, Physics, Engineering, and Finance Calculators. It has an online dew point calculator. This is a simple calculator that takes temperature and relative humidity as input. You can pick a temperature scale and add your value. It supports Celcius, Fahrenheit, Kelvin, and Rankin. After that, you can add the relative humidity percentage and get the dew point. Firstly, it shows the dew point in Celcius. Below that, it converts it to Fahrenheit, Kelvin, and Rankin as well.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity and Temperature.
• It supports Celcius, Fahrenheit, Kelvin, and Rankin temperature scales.

Migal.co

Migal.co is a free website that offers an online dew point calculator. This calculator is for welding purposes as it helps you determine the atmospheric influences that may significantly change the conditions of fabrication. Apart from relative humidity and air temperature, it also takes metal temperature as input. You have to add the readings in degrees Celcius. Then it gives you the dew point, pressure of water vapor, and absolute humidity. Based on the data, it also tells you whether it’s a decent condition for welding or not.

Key Points:

• This calculator calculates the Dew Point from Relative Humidity Air Temperature, and Metal Temperature.
• It calculates in degrees Celcius only.
• It also finds the Pressure of Water Vapor and Absolute Humidity.
• Suggests possible countermeasures to reduce the atmospheric influences on fabrication.

Aos.wisc.edu

This Dew Point Calculator by Aos.wisc.edu is a simple tool to find the temperature for dew falling. This calculator uses a dry bulb and wet bulb scenario. You can enter the temperature reading from a dry bulb and then from a web bulb along with relative humidity. Based on that, it gives you the dew point. It takes the temperature values in Fahrenheit only but shows the dew point in degrees Fahrenheit and degrees Celcius. Apart from that, it calculates the heat index and wind chill as well.

Key Points:

• This calculator calculates the Dew Point Dry Bulb and Wet Bulb temperature.
• It only works with Fahrenheit temperature scales.
• It shows the dew point value in degrees Fahrenheit and degrees Celcius.
• Also gives the Heat Index and Wind Chill values.

Airpack.nl

Airpack.nl offers a couple of dew point calculators. It has a Pressure Dewpoint to Atmospheric Dewpoint Calculator and Atmospheric Dewpoint to Pressure Dewpoint Calculator. It takes the atmospheric dew point to calculate the pressure dew point and vice versa. Depending on what of these values you have, you can pick a calculator. Then you can insert your values to get the dew point.

Key Points:

• This calculator calculates the Atmospheric Dew Point from Pressure Dew Point and vice versa.
• It can calculate on Celcius temperature scales.

bmcnoldy.rsmas.miami.edu

bmcnoldy.rsmas.miami.edu has yet another simple dew point calculator. This is a simple calculator that starts with temperature scales. It supports Celcius and Fahrenheit. You can pick the scale based on the values you have. It has three input fields; Temperature, Relative Humidity, and Dew Point. You have any two values and leave one empty that you want to calculate. When you run the calculation, it gives you the missing value.

Key Points:

• This calculator calculates the Dew Point, Relative Humidity,  Temperature.
• It supports Celcius and Fahrenheit temperature scales.