{"id":1726,"date":"2024-12-27T05:48:56","date_gmt":"2024-12-27T05:48:56","guid":{"rendered":"https:\/\/donhit.com\/en\/?p=1726"},"modified":"2025-02-07T09:39:14","modified_gmt":"2025-02-07T09:39:14","slug":"loan-amortization","status":"publish","type":"post","link":"https:\/\/donhit.com\/en\/calculator\/loan-amortization\/","title":{"rendered":"Loan Amortization Calculator"},"content":{"rendered":"<p><center><div class=\"container123\">\r\n        <h2>Loan Amortization Calculator<\/h2>\r\n        \r\n        <div class=\"calculator-grid\">\r\n            <div class=\"input-group\">\r\n                <label for=\"loanAmount\">Loan Amount ($)<\/label>\r\n                <input type=\"number\" id=\"loanAmount\" min=\"0\" step=\"1000\" value=\"100000\">\r\n                <div class=\"error\" id=\"loanAmountError\"><\/div>\r\n            <\/div>\r\n\r\n            <div class=\"input-group\">\r\n                <label for=\"interestRate\">Annual Interest Rate (%)<\/label>\r\n                <input type=\"number\" id=\"interestRate\" min=\"0\" max=\"100\" step=\"0.1\" value=\"5\">\r\n                <div class=\"error\" id=\"interestRateError\"><\/div>\r\n            <\/div>\r\n\r\n            <div class=\"input-group\">\r\n                <label for=\"loanTerm\">Loan Term (years)<\/label>\r\n                <input type=\"number\" id=\"loanTerm\" min=\"1\" max=\"50\" step=\"1\" value=\"30\">\r\n                <div class=\"error\" id=\"loanTermError\"><\/div>\r\n            <\/div>\r\n\r\n            <div class=\"input-group\">\r\n                <label>&nbsp;<\/label>\r\n                <button onclick=\"calculateAmortization()\">Calculate<\/button>\r\n            <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"results\" id=\"results\" style=\"display: none;\">\r\n            <div class=\"summary\">\r\n                <div class=\"summary-item\">\r\n                    <h3>Monthly Payment<\/h3>\r\n                    <p id=\"monthlyPayment\">$0<\/p>\r\n                <\/div>\r\n                <div class=\"summary-item\">\r\n                    <h3>Total Interest<\/h3>\r\n                    <p id=\"totalInterest\">$0<\/p>\r\n                <\/div>\r\n                <div class=\"summary-item\">\r\n                    <h3>Total Payment<\/h3>\r\n                    <p id=\"totalPayment\">$0<\/p>\r\n                <\/div>\r\n            <\/div>\r\n\r\n            <table>\r\n                <thead>\r\n                    <tr>\r\n                        <th>Payment #<\/th>\r\n                        <th>Payment<\/th>\r\n                        <th>Principal<\/th>\r\n                        <th>Interest<\/th>\r\n                        <th>Balance<\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n                <tbody id=\"amortizationTable\">\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n\r\n        <div class=\"loading\" id=\"loading\">Calculating<\/div>\r\n    <\/div>\r\n\r\n    <script>\r\n        function validateInputs() {\r\n            let isValid = true;\r\n            const loanAmount = parseFloat(document.getElementById('loanAmount').value);\r\n            const interestRate = parseFloat(document.getElementById('interestRate').value);\r\n            const loanTerm = parseInt(document.getElementById('loanTerm').value);\r\n\r\n            \/\/ Reset error messages\r\n            document.getElementById('loanAmountError').textContent = '';\r\n            document.getElementById('interestRateError').textContent = '';\r\n            document.getElementById('loanTermError').textContent = '';\r\n\r\n            if (!loanAmount || loanAmount <= 0) {\r\n                document.getElementById('loanAmountError').textContent = 'Please enter a valid loan amount';\r\n                isValid = false;\r\n            }\r\n\r\n            if (!interestRate || interestRate < 0 || interestRate > 100) {\r\n                document.getElementById('interestRateError').textContent = 'Please enter a valid interest rate between 0 and 100';\r\n                isValid = false;\r\n            }\r\n\r\n            if (!loanTerm || loanTerm < 1 || loanTerm > 50) {\r\n                document.getElementById('loanTermError').textContent = 'Please enter a valid loan term between 1 and 50 years';\r\n                isValid = false;\r\n            }\r\n\r\n            return isValid;\r\n        }\r\n\r\n        function formatCurrency(amount) {\r\n            return new Intl.NumberFormat('en-US', {\r\n                style: 'currency',\r\n                currency: 'USD',\r\n                minimumFractionDigits: 2,\r\n                maximumFractionDigits: 2\r\n            }).format(amount);\r\n        }\r\n\r\n        function calculateAmortization() {\r\n            if (!validateInputs()) return;\r\n\r\n            const loading = document.getElementById('loading');\r\n            const results = document.getElementById('results');\r\n            \r\n            loading.style.display = 'block';\r\n            results.style.display = 'none';\r\n\r\n            setTimeout(() => {\r\n                const loanAmount = parseFloat(document.getElementById('loanAmount').value);\r\n                const annualRate = parseFloat(document.getElementById('interestRate').value) \/ 100;\r\n                const years = parseInt(document.getElementById('loanTerm').value);\r\n\r\n                const monthlyRate = annualRate \/ 12;\r\n                const numberOfPayments = years * 12;\r\n\r\n                \/\/ Calculate monthly payment\r\n                const monthlyPayment = (loanAmount * monthlyRate * Math.pow(1 + monthlyRate, numberOfPayments)) \/\r\n                    (Math.pow(1 + monthlyRate, numberOfPayments) - 1);\r\n\r\n                let balance = loanAmount;\r\n                let totalInterest = 0;\r\n                const tableBody = document.getElementById('amortizationTable');\r\n                tableBody.innerHTML = '';\r\n\r\n                \/\/ Generate amortization schedule\r\n                for (let payment = 1; payment <= numberOfPayments; payment++) {\r\n                    const interest = balance * monthlyRate;\r\n                    const principal = monthlyPayment - interest;\r\n                    totalInterest += interest;\r\n                    balance -= principal;\r\n\r\n                    if (payment <= 12 || payment > numberOfPayments - 12 || payment % 12 === 0) {\r\n                        const row = document.createElement('tr');\r\n                        row.innerHTML = `\r\n                            <td>${payment}<\/td>\r\n                            <td>${formatCurrency(monthlyPayment)}<\/td>\r\n                            <td>${formatCurrency(principal)}<\/td>\r\n                            <td>${formatCurrency(interest)}<\/td>\r\n                            <td>${formatCurrency(Math.abs(balance))}<\/td>\r\n                        `;\r\n                        tableBody.appendChild(row);\r\n                    }\r\n                }\r\n\r\n                \/\/ Update summary\r\n                document.getElementById('monthlyPayment').textContent = formatCurrency(monthlyPayment);\r\n                document.getElementById('totalInterest').textContent = formatCurrency(totalInterest);\r\n                document.getElementById('totalPayment').textContent = formatCurrency(loanAmount + totalInterest);\r\n\r\n                loading.style.display = 'none';\r\n                results.style.display = 'block';\r\n            }, 500);\r\n        }\r\n\r\n        \/\/ Initialize calculation on page load\r\n        document.addEventListener('DOMContentLoaded', calculateAmortization);\r\n    <\/script><\/center>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[184],"tags":[],"class_list":["post-1726","post","type-post","status-publish","format-standard","hentry","category-calculator"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Loan Amortization Calculator - DonHit<\/title>\n<meta name=\"description\" content=\"Loan amortization\u2014the process of spreading out loan payments over time\u2014plays a critical role in financial planning, helping borrowers manage their debt effectively.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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