Embeddable Dew Point Calculator for Your Site

Add a professional Dew Point Calculator to your website. You can easily customize the style to match your design while keeping the functionality intact. Simply copy the code below and paste it into your site's HTML.

Calculator Preview

Temperature (°C)

Relative Humidity (%)

Installation Instructions

1.Copy the code in the text box below
2.Paste it into your HTML page
3.You may edit the CSS or HTML layout, but do not modify the JavaScript
4.Keep the attribution link "powered by Ultimate Calc Hub"

<!--BEGIN OF DEW POINT CALCULATOR CODE-->
<!-- Terms of Use (see below) -->
<div id="uch-embed-calc">
  <h2 style="margin-bottom: 1rem;">Dew Point Calculator</h2>
  
  <div style="margin-bottom: 1rem;">
    <label for="temperature">Temperature (°C):</label>
    <input type="number" id="temperature" min="-50" max="60" step="0.1" style="width: 100%; padding: 8px; margin-top: 4px; border: 1px solid #ccc; border-radius: 4px;">
  </div>
  
  <div style="margin-bottom: 1rem;">
    <label for="humidity">Relative Humidity (%):</label>
    <input type="number" id="humidity" min="0" max="100" step="0.1" style="width: 100%; padding: 8px; margin-top: 4px; border: 1px solid #ccc; border-radius: 4px;">
  </div>
  
  <button onclick="calculateDewPoint()" style="background: var(--uch-accent); color: white; padding: 8px 16px; border: none; border-radius: 4px; cursor: pointer; width: 100%;">
    Calculate Dew Point
  </button>
  
  <div id="result" style="margin-top: 1rem; text-align: center; font-weight: bold;"></div>
  
  <center id="uch-credit" style="margin-top: 1rem; font-size: 0.875rem;">
    powered by <a href="https://ultimatecalchub.com" target="_blank" rel="dofollow" style="color: var(--uch-accent); text-decoration: none;">Ultimate Calc Hub</a>
  </center>
</div>

<script>
function calculateDewPoint() {
  const temp = parseFloat(document.getElementById('temperature').value);
  const rh = parseFloat(document.getElementById('humidity').value);
  
  if (!temp && temp !== 0 || !rh && rh !== 0) {
    document.getElementById('result').innerHTML = 'Please enter both values';
    return;
  }

  if (rh < 0 || rh > 100) {
    document.getElementById('result').innerHTML = 'Humidity must be between 0 and 100%';
    return;
  }

  // Magnus-Tetens approximation
  const a = 17.27;
  const b = 237.7;
  
  const alpha = ((a * temp) / (b + temp)) + Math.log(rh / 100);
  const dewPoint = (b * alpha) / (a - alpha);
  const spread = temp - dewPoint;
  
  document.getElementById('result').innerHTML = 
    `<div style="line-height: 1.6;">
      <div>Dew Point: ${dewPoint.toFixed(1)}°C</div>
      <div style="font-size: 0.875rem; margin-top: 0.5rem; color: #666;">
        Dew Point Spread: ${spread.toFixed(1)}°C
      </div>
    </div>`;
}
</script>

<style>
:root {
  --uch-accent: #0066ff;
  --uch-bg: #f9f9f9;
  --uch-text: #333;
}

#uch-embed-calc {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--uch-bg);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  max-width: 500px;
  margin: 0 auto;
}

#uch-embed-calc input:focus {
  outline-color: var(--uch-accent);
}

#uch-embed-calc button:hover {
  opacity: 0.9;
}
</style>
<!--
TERMS OF USE
By embedding this calculator, you agree:
1. The materials are provided "as is" and without warranties.
2. You may customize HTML/CSS but not modify JavaScript.
3. Keep "powered by Ultimate Calc Hub" with its link.
4. Copyright belongs to Ultimate Calc Hub (https://ultimatecalchub.com).
5. Do not remove or alter these terms.
-->
<!--END OF DEW POINT CALCULATOR CODE-->

Terms of Use

By embedding this calculator, you agree to the following:

1.The materials are provided "as is" without warranties of any kind
2.You may customize the HTML and CSS, but not the JavaScript code
3.You must keep the "powered by Ultimate Calc Hub" text and link
4.The copyright belongs to Ultimate Calc Hub
5.You must not remove or alter these terms

About Dew Point Calculation

The dew point is the temperature at which air becomes saturated with water vapor and dew begins to form. It's a crucial metric for understanding humidity, comfort levels, and weather conditions. This calculator uses the Magnus-Tetens approximation formula for accurate results.

•How It Works

The calculator uses the Magnus-Tetens formula:

–Requires temperature (°C) and relative humidity (%)
–Results show dew point and dew point spread
–Dew point spread indicates how far the temperature is from saturation

•Understanding Results

–High dew point (>20°C): Very humid, uncomfortable
–Moderate dew point (10-20°C): Comfortable humidity
–Low dew point (<10°C): Dry air
–Small spread (<3°C): Risk of fog or condensation

•Customization Options

The calculator's appearance can be customized using CSS variables:

–--uch-accent: Main accent color
–--uch-bg: Background color
–--uch-text: Text color