..judul : Konversi Volt Watt Ampere
.. siput: konverter volt-watt-amp
.. tanggal: 26-12-2025 15:00:00 UTC
.. tag: jaringan, kalkulator, alat
.. kategori: Kalkulator
..tautan:
.. deskripsi: Konversi Volt Watt Ampere - Alat kalkulator online
.. ketik: teks
<style>
    .calc-container {
        max-width: 900px;
        margin: 20px auto;
        padding: 20px;
    }

    .calc-header {
        margin-bottom: 30px;
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        color: white;
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    .calc-header h2 {
        margin-top: 0;
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    }

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        gap: 10px;
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    .phase-indicator {
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        font-size: 13px;
        font-weight: bold;
        margin-left: 10px;
    }

    /* Responsive design */
    @media (max-width: 768px) {
        .input-grid,
        .result-grid {
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        .calc-header h2 {
            font-size: 24px;
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        .data-value {
            font-size: 20px;
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</style>
<div class="calc-container">
<div class="calc-header">
<h2>Kalkulator Konversi Volt Watt Ampere</h2>
<p>Menghitung hubungan daya listrik antara tegangan, watt, dan arus listrik. Masukkan dua nilai apa saja untuk menghitung nilai ketiga.</p>
<div class="input-grid">
<div class="input-group">
<label for="voltage">Tegangan (V):</label>
<input autocomplete="off" id="voltage" type="text" value="0"/>
</div>
<div class="input-group">
<label for="wattage">Watt (W):</label>
<input autocomplete="off" id="wattage" type="text" value="0"/>
</div>
<div class="input-group">
<label for="amperage">Arus listrik (A):</label>
<input autocomplete="off" id="amperage" type="text" value="0"/>
</div>
</div>
<div class="checkbox-group">
<input id="threePhase" onchange="voltwattamp()" type="checkbox"/>
<label for="threePhase">Daya 3 Fase (menggunakan pengali √3 untuk tegangan saluran-ke-saluran)</label>
</div>
<div class="button-container">
<button class="calc-button" onclick="voltwattamp()" type="button">Menghitung</button>
</div>
<div class="help-text">
<strong>Cara menggunakan:</strong>Masukkan dua nilai apa pun (tegangan, watt, atau arus listrik) dan klik Hitung untuk menemukan nilai ketiga. Centang kotak 3 Fase untuk perhitungan daya tiga fase.</div>
</div>
<div class="result-section">
<div class="section-header">Hasil yang Dihitung<span class="phase-indicator" id="phaseIndicator">Fase Tunggal</span>
</div>
<div class="section-content">
<div class="result-grid">
<div class="data-row">
<div class="data-label">Tegangan Dihitung:</div>
<div class="data-value" id="voltResult">-</div>
</div>
<div class="data-row">
<div class="data-label">Watt Dihitung:</div>
<div class="data-value" id="wattResult">-</div>
</div>
<div class="data-row">
<div class="data-label">Arus Listrik Dihitung:</div>
<div class="data-value" id="ampResult">-</div>
</div>
</div>
<div class="formula-info" id="formulaInfo">
<strong>Rumus yang digunakan (Fase Tunggal):</strong><br/>Tegangan (V) = Watt (W) / Ampere (A)<br/>Watt (W) = Tegangan (V) × Ampere (A)<br/>Ampere (A) = Watt (W) / Tegangan (V)</div>
</div>
</div>
</div>
<script>
function voltwattamp() {
    // Set variables from input
    var volt = Number(document.getElementById("voltage").value);
    var watt = Number(document.getElementById("wattage").value);
    var amp = Number(document.getElementById("amperage").value);

    // Check if 3-phase is enabled
    var isThreePhase = document.getElementById("threePhase").checked;
    var multiplier = isThreePhase ? Math.sqrt(3) : 1; // √3 ≈ 1.732

    // Calculate results based on phase type
    var voltres, wattres, ampres;

    if (isThreePhase) {
        /*
        3-Phase formulas (assuming unity power factor and line-to-line voltage):
        P = √3 × V × I
        V = P / (√3 × I)
        I = P / (√3 × V)
        */
        voltres = watt / (multiplier * amp);
        wattres = multiplier * volt * amp;
        ampres = watt / (multiplier * volt);
    } else {
        /*
        Single-phase formulas:
        V = P / I
        P = V × I
        I = P / V
        */
        voltres = watt / amp;
        wattres = volt * amp;
        ampres = watt / volt;
    }

    // Format results with units
    document.getElementById("voltResult").innerHTML = isFinite(voltres) ? voltres.toFixed(2) + ' V' : '-';
    document.getElementById("wattResult").innerHTML = isFinite(wattres) ? wattres.toFixed(2) + ' W' : '-';
    document.getElementById("ampResult").innerHTML = isFinite(ampres) ? ampres.toFixed(2) + ' A' : '-';

    // Update phase indicator
    document.getElementById("phaseIndicator").textContent = isThreePhase ? '3-Phase' : 'Single-Phase';

    // Update formula display
    var formulaInfo = document.getElementById("formulaInfo");
    if (isThreePhase) {
        formulaInfo.innerHTML = `
            <strong>Formulas used (3-Phase):</strong><br>
            Voltage (V) = Wattage (W) / (√3 × Amperage (A))<br>
            Wattage (W) = √3 × Voltage (V) × Amperage (A)<br>
            Amperage (A) = Wattage (W) / (√3 × Voltage (V))<br>
            <em>Note: √3 ≈ 1.732 (assumes unity power factor and line-to-line voltage)</em>
        `;
    } else {
        formulaInfo.innerHTML = `
            <strong>Formulas used (Single-Phase):</strong><br>
            Voltage (V) = Wattage (W) / Amperage (A)<br>
            Wattage (W) = Voltage (V) × Amperage (A)<br>
            Amperage (A) = Wattage (W) / Voltage (V)
        `;
    }
}

// Add enter key support for inputs
document.addEventListener('DOMContentLoaded', function() {
    const inputs = document.querySelectorAll('#voltage, #wattage, #amperage');
    inputs.forEach(input => {
        input.addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                voltwattamp();
            }
        });
    });
});
</script>