.. Titel: Celsius-Fahrenheit-Rechner
.. Slug: Celsius-zu-Fahrenheit
.. Datum: 26.12.2025 15:00:00 UTC
.. Schlagworte: Netzwerk, Taschenrechner, Tool
.. Kategorie: Taschenrechner
.. Link:
.. Beschreibung: Celsius in Fahrenheit umrechnen und umgekehrt. Unverzichtbar für die Interpretation von Hardware-Betriebstemperaturspezifikationen, HVAC-Sollwerten und Umgebungsgrenzwerten für Rechenzentren.
.. Typ: Text
<style>
    .calc-container {
        max-width: 1000px;
        margin: 20px auto;
        padding: 20px;
    }

    .calc-header {
        margin-bottom: 30px;
        padding: 25px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 12px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        color: white;
    }

    .calc-header h2 {
        margin-top: 0;
        color: white;
        font-size: 28px;
        margin-bottom: 10px;
    }

    .calc-header p {
        margin: 10px 0;
        opacity: 0.95;
        font-size: 15px;
    }

    .input-group {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
        margin-top: 20px;
    }

    .input-field {
        display: flex;
        flex-direction: column;
    }

    .input-field label {
        margin-bottom: 8px;
        font-weight: bold;
        color: white;
        font-size: 14px;
    }

    .input-field input {
        padding: 14px;
        font-size: 16px;
        border: 2px solid rgba(255,255,255,0.3);
        border-radius: 6px;
        font-family: 'Courier New', monospace;
        background: rgba(255,255,255,0.95);
        transition: all 0.3s ease;
    }

    .input-field input:focus {
        outline: none;
        border-color: #4CAF50;
        background: white;
        box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
    }

    .button-group {
        margin-top: 20px;
    }

    .submit-btn {
        padding: 14px 35px;
        font-size: 16px;
        background: #4CAF50;
        color: white;
        border: none;
        border-radius: 6px;
        cursor: pointer;
        font-weight: bold;
        transition: all 0.3s ease;
        box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    }

    .submit-btn:hover {
        background: #45a049;
        transform: translateY(-1px);
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    }

    .submit-btn:active {
        background: #3d8b40;
        transform: translateY(0);
    }

    .result-section {
        background: white;
        border: 1px solid #e0e0e0;
        border-radius: 8px;
        margin-bottom: 15px;
        overflow: hidden;
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        transition: all 0.3s ease;
    }

    .result-section:hover {
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }

    .section-header {
        background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
        color: white;
        padding: 15px 20px;
        font-size: 18px;
        font-weight: bold;
    }

    .section-content {
        padding: 20px;
        background: #fafafa;
    }

    .data-row {
        display: flex;
        margin: 12px 0;
        padding: 10px;
        background: white;
        border-radius: 4px;
        border-left: 3px solid #4CAF50;
    }

    .data-label {
        font-weight: bold;
        color: #555;
        min-width: 180px;
        flex-shrink: 0;
    }

    .data-value {
        color: #333;
        font-family: 'Courier New', monospace;
        word-break: break-word;
    }

    .data-value.highlight {
        color: #4CAF50;
        font-weight: bold;
        font-size: 18px;
    }

    .help-text {
        margin-top: 15px;
        font-size: 14px;
        color: rgba(255,255,255,0.9);
        background: rgba(0,0,0,0.1);
        padding: 10px 15px;
        border-radius: 4px;
    }

    .help-text strong {
        color: white;
    }

    /* Responsive design */
    @media (max-width: 768px) {
        .input-group {
            grid-template-columns: 1fr;
        }

        .data-row {
            flex-direction: column;
        }

        .data-label {
            margin-bottom: 5px;
            min-width: auto;
        }
    }
</style>
<div class="calc-container">
<div class="calc-header">
<h2>Temperaturkonverter</h2>
<p>Konvertieren Sie sofort zwischen Celsius- und Fahrenheit-Temperaturen.</p>
<div class="input-group">
<div class="input-field">
<label for="cel">Grad Celsius</label>
<input id="cel" placeholder="0" type="text" value="0"/>
</div>
<div class="input-field">
<label for="fah">Grad Fahrenheit</label>
<input id="fah" placeholder="32" type="text" value="32"/>
</div>
</div>
<div class="button-group">
<button class="submit-btn" onclick="celsiusToFahrenheit()" type="button">Konvertieren</button>
</div>
<div class="help-text">
<strong>So funktioniert es:</strong>Geben Sie in eines der Felder eine Temperatur ein und klicken Sie auf „Konvertieren“, um die Umrechnung in beide Richtungen anzuzeigen.</div>
</div>
<div class="result-section">
<div class="section-header">Celsius zu Fahrenheit</div>
<div class="section-content">
<div class="data-row">
<div class="data-label">Eingabe (Celsius):</div>
<div class="data-value" id="celInput">0</div>
</div>
<div class="data-row">
<div class="data-label">Ergebnis:</div>
<div class="data-value highlight" id="ctf">32</div>
</div>
</div>
</div>
<div class="result-section">
<div class="section-header">Fahrenheit in Celsius</div>
<div class="section-content">
<div class="data-row">
<div class="data-label">Eingabe (Fahrenheit):</div>
<div class="data-value" id="fahInput">32</div>
</div>
<div class="data-row">
<div class="data-label">Ergebnis:</div>
<div class="data-value highlight" id="ftc">0</div>
</div>
</div>
</div>
</div>
<script>
function celsiusToFahrenheit() {
    // Set variables from input
    var cel = Number(document.getElementById("cel").value);
    var fah = Number(document.getElementById("fah").value);

    // Convert Celsius to Fahrenheit
    var ctf = (cel*1.8)+32;

    // Convert Fahrenheit to Celsius
    var ftc = (fah-32)*0.5556;

    // Update display elements
    document.getElementById("celInput").innerHTML = cel;
    document.getElementById("ctf").innerHTML = ctf.toFixed(2) + " °F";

    document.getElementById("fahInput").innerHTML = fah;
    document.getElementById("ftc").innerHTML = ftc.toFixed(2) + " °C";
}

// Add enter key support for both inputs
document.addEventListener('DOMContentLoaded', function() {
    document.getElementById('cel').addEventListener('keypress', function(e) {
        if (e.key === 'Enter') {
            celsiusToFahrenheit();
        }
    });

    document.getElementById('fah').addEventListener('keypress', function(e) {
        if (e.key === 'Enter') {
            celsiusToFahrenheit();
        }
    });

    // Run initial conversion to populate results
    celsiusToFahrenheit();
});
</script>