How to Create an EMI Calculator Tool for WordPress using HTML CSS $ JAVASCRIPT 2025
How to Create an EMI Calculator Tool
Posted inAPI Project

How to Create an EMI Calculator Tool for WordPress using HTML CSS $ JAVASCRIPT 2025

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Key Features of the EMI Calculator Tool

  1. Loan Amount Input
    • Allow users to input the loan amount, ranging from small to large values (e.g., ₹50,000 to ₹1,00,00,000).
  2. Interest Rate Input
    • Provide a field where users can input the interest rate in percentage.
  3. Loan Tenure Selection
    • Add a slider or dropdown menu for users to select the loan tenure in months or years.
  4. Real-Time EMI Calculation
    • Include a “Calculate EMI” button that instantly displays the results.
  5. Dynamic Results Display
    • Show Monthly EMI, Total Interest Payable, and Total Payment Amount (Principal + Interest).
  6. Amortization Schedule
    • Offer a detailed month-wise breakdown of principal and interest via a table or graph.
  7. Responsive Design
    • Ensure the tool is mobile-friendly and functions flawlessly across different devices.
  8. Customizable Appearance
    • Allow customization options to match the tool’s design with your website theme.
  9. Shortcode Integration
    • Enable the tool to be easily embedded in pages or posts using WordPress shortcodes.
  10. SEO Optimization
    • Optimize the tool with meta tags and structured data to improve search engine rankings.
  11. Multilingual Support (Optional)
    • Provide accessibility in multiple languages, such as Hindi and English.
How to Create an EMI Calculator Tool for WordPress using HTML CSS $ JAVASCRIPT

CODE 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>EMI Calculator 2025</title>
    <meta name="description" content="Best EMI Calculator 2025 - Calculate your Equated Monthly Installment with detailed amortization schedule">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/chart.js" rel="stylesheet">
    <style>
        :root {
            --primary-color: #0056D2;
            --primary-hover: #003DA5;
            --secondary-color: #28A745;
            --light-blue-bg: #EAF3FF;
            --light-green-bg: #DFF5E1;
            --light-gray-bg: #F8F9FA;
            --dark-gray-text: #343A40;
            --white: #FFFFFF;
            --orange: #FFA726;
            --success-green: #28A745;
        }

        .dark-mode {
            --primary-color: #4B83DC;
            --primary-hover: #3D6EB8;
            --secondary-color: #2EBD4E;
            --light-blue-bg: #1E2A3B;
            --light-green-bg: #1E3B28;
            --light-gray-bg: #1A1A1A;
            --dark-gray-text: #E0E0E0;
            --white: #2D2D2D;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            min-height: 100vh;
            background: var(--light-gray-bg);
            color: var(--dark-gray-text);
            transition: background-color 0.3s, color 0.3s;
        }

        .toolbox {
            background: var(--white);
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            padding: 30px;
            margin: 20px auto;
            max-width: 1200px;
        }

        .calculator-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .input-section {
            background: var(--light-blue-bg);
            padding: 25px;
            border-radius: 15px;
            transition: transform 0.3s ease;
        }

        .result-section {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
            padding: 25px;
            border-radius: 15px;
            color: var(--white);
        }

        .chart-section {
            grid-column: 1 / -1;
            background: var(--white);
            padding: 25px;
            border-radius: 15px;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--dark-gray-text);
        }

        .form-control {
            border-radius: 10px;
            border: 2px solid var(--primary-color);
            padding: 10px;
            transition: all 0.3s ease;
            background: var(--white);
            color: var(--dark-gray-text);
        }

        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(0, 86, 210, 0.25);
        }

        .btn-primary {
            background: var(--primary-color);
            border-color: var(--primary-color);
            color: var(--white);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
        }

        .result-item {
            background: rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 15px;
            margin-bottom: 1.5rem;
            text-align: center;
            backdrop-filter: blur(5px);
        }

        .result-item h4 {
            font-size: 1rem;
            margin-bottom: 0.5rem;
            color: rgba(255, 255, 255, 0.9);
        }

        .result-item p {
            font-size: 1.5rem;
            font-weight: bold;
            margin: 0;
            color: var(--white);
        }

        .table-responsive {
            margin-top: 20px;
        }

        .table {
            width: 100%;
            margin-bottom: 1rem;
            background-color: var(--white);
            border-radius: 10px;
            overflow: hidden;
        }

        .table th,
        .table td {
            padding: 12px;
            vertical-align: middle;
            border-top: 1px solid #dee2e6;
        }

        .table thead th {
            background-color: var(--primary-color);
            color: var(--white);
            border-bottom: 2px solid var(--primary-hover);
        }

        @media (max-width: 768px) {
            .calculator-container {
                grid-template-columns: 1fr;
            }
            
            .toolbox {
                margin: 10px;
                padding: 20px;
            }
        }
    </style>
</head>
<body>
    <button class="btn btn-primary theme-toggle" onclick="toggleTheme()" style="position: fixed; top: 20px; right: 20px;">
        <i class="fas fa-moon"></i> Toggle Theme
    </button>

    <div class="container">
        <div class="toolbox">
            <h2 class="text-center mb-4">EMI Calculator</h2>
            <div class="calculator-container">
                <div class="input-section">
                    <div class="form-group">
                        <label for="loanAmount" class="form-label">Loan Amount (₹)</label>
                        <input type="number" class="form-control" id="loanAmount" min="50000" max="10000000" value="1000000">
                    </div>
                    <div class="form-group">
                        <label for="interestRate" class="form-label">Interest Rate (%)</label>
                        <input type="number" class="form-control" id="interestRate" min="1" max="30" step="0.1" value="10.5">
                    </div>
                    <div class="form-group">
                        <label for="loanTenure" class="form-label">Loan Tenure</label>
                        <div class="input-group">
                            <input type="number" class="form-control" id="loanTenure" min="1" max="360" value="20">
                            <select class="form-select" id="tenureType">
                                <option value="years">Years</option>
                                <option value="months">Months</option>
                            </select>
                        </div>
                    </div>
                    <div class="form-group">
                        <select class="form-select" id="languageSelector">
                            <option value="en">English</option>
                            <option value="hi">हिंदी</option>
                        </select>
                    </div>
                    <div class="d-flex gap-2">
                        <button id="calculateEMI" class="btn btn-primary flex-grow-1">Calculate EMI</button>
                        <button id="resetForm" class="btn btn-secondary">Reset</button>
                    </div>
                </div>

                <div class="result-section">
                    <div class="result-item">
                        <h4>Monthly EMI</h4>
                        <p id="monthlyEMI">₹0</p>
                    </div>
                    <div class="result-item">
                        <h4>Total Interest</h4>
                        <p id="totalInterest">₹0</p>
                    </div>
                    <div class="result-item">
                        <h4>Total Amount</h4>
                        <p id="totalAmount">₹0</p>
                    </div>
                </div>

                <div class="chart-section">
                    <h3>Amortization Schedule</h3>
                    <div class="table-responsive">
                        <table class="table table-striped" id="amortizationTable">
                        </table>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.17.0/xlsx.full.min.js"></script>
    <script src="https://kit.fontawesome.com/your-kit-code.js"></script>
    <script src="emi-calculator.js"></script>

    <script>
        function toggleTheme() {
            document.body.classList.toggle('dark-mode');
        }
    </script>
    <SCRIPT>
      class EMICalculator {
    constructor() {
        this.initializeElements();
        this.attachEventListeners();
        this.setupLanguageSupport();
    }

    initializeElements() {
        // Input elements
        this.loanAmount = document.getElementById('loanAmount');
        this.interestRate = document.getElementById('interestRate');
        this.loanTenure = document.getElementById('loanTenure');
        this.tenureType = document.getElementById('tenureType');
        this.calculateBtn = document.getElementById('calculateEMI');
        this.resetBtn = document.getElementById('resetForm');
        
        // Result elements
        this.monthlyEMI = document.getElementById('monthlyEMI');
        this.totalInterest = document.getElementById('totalInterest');
        this.totalAmount = document.getElementById('totalAmount');
        this.amortizationTable = document.getElementById('amortizationTable');
    }

    attachEventListeners() {
        this.calculateBtn.addEventListener('click', () => this.calculateEMI());
        this.resetBtn.addEventListener('click', () => this.resetCalculator());
        
        // Real-time calculation on input change
        ['input', 'change'].forEach(event => {
            this.loanAmount.addEventListener(event, () => this.calculateEMI());
            this.interestRate.addEventListener(event, () => this.calculateEMI());
            this.loanTenure.addEventListener(event, () => this.calculateEMI());
            this.tenureType.addEventListener(event, () => this.calculateEMI());
        });
    }

    setupLanguageSupport() {
        const langSelector = document.getElementById('languageSelector');
        if (langSelector) {
            langSelector.addEventListener('change', (e) => this.changeLanguage(e.target.value));
        }
    }

    calculateEMI() {
        const P = parseFloat(this.loanAmount.value);
        const R = parseFloat(this.interestRate.value) / 12 / 100; // Monthly interest rate
        let N = parseFloat(this.loanTenure.value);
        
        // Convert years to months if years is selected
        if (this.tenureType.value === 'years') {
            N = N * 12;
        }

        // EMI calculation formula: EMI = P * R * (1 + R)^N / ((1 + R)^N - 1)
        const EMI = P * R * Math.pow(1 + R, N) / (Math.pow(1 + R, N) - 1);
        const totalAmount = EMI * N;
        const totalInterest = totalAmount - P;

        this.updateResults(EMI, totalAmount, totalInterest);
        this.generateAmortizationSchedule(P, R, N, EMI);
    }

    updateResults(EMI, totalAmount, totalInterest) {
        this.monthlyEMI.textContent = this.formatCurrency(EMI);
        this.totalAmount.textContent = this.formatCurrency(totalAmount);
        this.totalInterest.textContent = this.formatCurrency(totalInterest);
    }

    generateAmortizationSchedule(principal, monthlyRate, tenure, EMI) {
        let balance = principal;
        let schedule = [];
        
        for (let month = 1; month <= tenure; month++) {
            const interest = balance * monthlyRate;
            const principalPaid = EMI - interest;
            balance = balance - principalPaid;

            schedule.push({
                month,
                emi: EMI,
                principal: principalPaid,
                interest: interest,
                balance: Math.max(0, balance)
            });
        }

        this.displayAmortizationSchedule(schedule);
    }

    displayAmortizationSchedule(schedule) {
        let html = `
            <thead>
                <tr>
                    <th>${this.getText('month')}</th>
                    <th>${this.getText('emi')}</th>
                    <th>${this.getText('principal')}</th>
                    <th>${this.getText('interest')}</th>
                    <th>${this.getText('balance')}</th>
                </tr>
            </thead>
            <tbody>
        `;

        schedule.forEach(row => {
            html += `
                <tr>
                    <td>${row.month}</td>
                    <td>${this.formatCurrency(row.emi)}</td>
                    <td>${this.formatCurrency(row.principal)}</td>
                    <td>${this.formatCurrency(row.interest)}</td>
                    <td>${this.formatCurrency(row.balance)}</td>
                </tr>
            `;
        });

        html += '</tbody>';
        this.amortizationTable.innerHTML = html;
    }

    formatCurrency(amount) {
        return new Intl.NumberFormat('en-IN', {
            style: 'currency',
            currency: 'INR',
            minimumFractionDigits: 0,
            maximumFractionDigits: 0
        }).format(amount);
    }

    // Multilingual support
    getText(key) {
        const translations = {
            'en': {
                'month': 'Month',
                'emi': 'EMI',
                'principal': 'Principal',
                'interest': 'Interest',
                'balance': 'Balance'
            },
            'hi': {
                'month': 'महीना',
                'emi': 'ईएमआई',
                'principal': 'मूल राशि',
                'interest': 'ब्याज',
                'balance': 'शेष राशि'
            }
        };

        const currentLang = document.documentElement.lang || 'en';
        return translations[currentLang][key] || translations['en'][key];
    }

    changeLanguage(lang) {
        document.documentElement.lang = lang;
        this.calculateEMI(); // Refresh the display with new language
    }

    resetCalculator() {
        // Reset input values to defaults
        this.loanAmount.value = '1000000';
        this.interestRate.value = '10.5';
        this.loanTenure.value = '20';
        this.tenureType.value = 'years';
        
        // Reset result displays
        this.monthlyEMI.textContent = '₹0';
        this.totalInterest.textContent = '₹0';
        this.totalAmount.textContent = '₹0';
        this.amortizationTable.innerHTML = '';
        
        // Add a subtle animation to indicate reset
        this.animateReset();
    }

    animateReset() {
        const inputs = [this.loanAmount, this.interestRate, this.loanTenure];
        inputs.forEach(input => {
            input.style.transition = 'all 0.3s ease';
            input.style.backgroundColor = '#e8f0fe';
            setTimeout(() => {
                input.style.backgroundColor = '';
            }, 300);
        });
    }
}

// Initialize the calculator when the DOM is loaded
document.addEventListener('DOMContentLoaded', () => {
    new EMICalculator();
});
    </SCRIPT>
</body>
</html>

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START CALCULATE 📅

EMI Calculator 2025

EMI Calculator

Monthly EMI

₹0

Total Interest

₹0

Total Amount

₹0

Amortization Schedule

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