Estimated Retirement Savings
$1,234,567
at age 65
Total Contributions:
$210,000
Employer Contributions:
$67,500
Interest Earned:
$957,067
This calculator provides estimates only. Actual results will vary based on market conditions and other factors.
Retirement Income
$5,416
per month
Annual Withdrawal:
$40,000
Social Security:
$25,000
Pension:
$0
Total Annual Income:
$65,000
Your savings are projected to last until age 95.
// Get numeric value from currency input
function getNumericValue(id) {
const element = document.getElementById(id);
if (!element) return 0;
const value = element.value.replace(/[^0-9.]/g, '');
return parseFloat(value) || 0;
}
// Format as currency
function formatCurrency(amount) {
return new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
minimumFractionDigits: 0,
maximumFractionDigits: 0
}).format(amount);
}
// Format as currency with decimals
function formatCurrencyWithDecimals(amount) {
return new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
minimumFractionDigits: 2,
maximumFractionDigits: 2
}).format(amount);
}
// Tab switching
document.querySelectorAll('.tab').forEach(tab => {
tab.addEventListener('click', function() {
// Update active tab
document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
this.classList.add('active');
// Show corresponding content
document.querySelectorAll('.tab-content').forEach(content => {
content.classList.add('hidden');
});
document.getElementById(`${this.dataset.tab}-tab`).classList.remove('hidden');
// Update charts when switching tabs
if (this.dataset.tab === 'savings') {
updateSavingsChart();
} else {
updateWithdrawalChart();
}
});
});
// Calculate retirement savings
function calculateRetirementSavings() {
// Get input values
const currentAge = parseInt(document.getElementById('currentAge').value) || 30;
const retirementAge = parseInt(document.getElementById('retirementAge').value) || 65;
const currentSavings = getNumericValue('currentSavings');
const monthlyContribution = getNumericValue('monthlyContribution');
const employerMatch = parseFloat(document.getElementById('employerMatch').value) || 0;
const currentIncome = getNumericValue('currentIncome');
const expectedRaise = parseFloat(document.getElementById('expectedRaise').value) / 100 || 0;
const expectedReturn = parseFloat(document.getElementById('expectedReturn').value) / 100 || 0;
// Calculate years to retirement
const yearsToRetirement = Math.max(0, retirementAge - currentAge);
// Calculate monthly return rate
const monthlyReturn = Math.pow(1 + expectedReturn, 1/12) - 1;
// Calculate future value of current savings
let futureValue = currentSavings * Math.pow(1 + expectedReturn, yearsToRetirement);
let totalContributions = 0;
let employerContributions = 0;
// Calculate future value of contributions with raises
let annualContribution = monthlyContribution * 12;
let currentSalary = currentIncome;
for (let year = 1; year <= yearsToRetirement; year++) {
// Apply annual raise to salary
if (year > 1) {
currentSalary = currentSalary * (1 + expectedRaise);
}
// Calculate employer match (capped at a percentage of salary)
const employerMatchAmount = Math.min(monthlyContribution * 12, (employerMatch / 100) * currentSalary);
// Add this year's contributions to the future value
const yearlyContribution = annualContribution + employerMatchAmount;
futureValue += yearlyContribution * Math.pow(1 + expectedReturn, yearsToRetirement - year);
// Track totals
totalContributions += annualContribution;
employerContributions += employerMatchAmount;
}
// Calculate interest earned
const interestEarned = futureValue - currentSavings - totalContributions - employerContributions;
// Update UI
document.getElementById('retirementSavings').textContent = formatCurrency(futureValue);
document.getElementById('retirementAgeDisplay').textContent = retirementAge;
document.getElementById('totalContributions').textContent = formatCurrency(totalContributions);
document.getElementById('employerContributions').textContent = formatCurrency(employerContributions);
document.getElementById('interestEarned').textContent = formatCurrency(interestEarned);
// Update chart
updateSavingsChart(currentAge, retirementAge, futureValue, totalContributions, employerContributions, interestEarned);
return futureValue;
}
// Calculate withdrawal strategy
function calculateWithdrawal() {
// Get input values
const retirementSavings = getNumericValue('retirementSavingsAmount');
const annualWithdrawal = getNumericValue('annualWithdrawal');
const inflationRate = parseFloat(document.getElementById('inflationRate').value) / 100 || 0;
const investmentReturn = parseFloat(document.getElementById('investmentReturn').value) / 100 || 0;
const retirementYears = parseInt(document.getElementById('retirementYears').value) || 30;
const socialSecurity = getNumericValue('socialSecurity');
const pension = getNumericValue('pension');
// Calculate monthly values
const monthlyWithdrawal = annualWithdrawal / 12;
const monthlySocialSecurity = socialSecurity / 12;
const monthlyPension = pension / 12;
// Project savings over retirement
let remainingSavings = retirementSavings;
let yearData = [];
let balanceData = [remainingSavings];
let yearLabels = [0];
for (let year = 1; year <= retirementYears; year++) {
// Calculate inflation-adjusted withdrawal for this year
const inflationAdjustedWithdrawal = annualWithdrawal * Math.pow(1 + inflationRate, year - 1);
// Calculate growth on remaining savings
const yearStartBalance = remainingSavings;
const yearEndBalance = (yearStartBalance - inflationAdjustedWithdrawal) * (1 + investmentReturn);
// Update remaining savings
remainingSavings = Math.max(0, yearEndBalance);
// Track data for chart
yearData.push({
year: year,
withdrawal: inflationAdjustedWithdrawal,
startBalance: yearStartBalance,
endBalance: yearEndBalance
});
balanceData.push(remainingSavings);
yearLabels.push(year);
// Stop if we run out of money
if (remainingSavings <= 0) {
break;
}
}
// Calculate how many years the savings will last
const yearsLast = Math.min(yearData.length, retirementYears);
// Update UI
document.getElementById('monthlyIncome').textContent = formatCurrency(monthlyWithdrawal + monthlySocialSecurity + monthlyPension);
document.getElementById('annualWithdrawalDisplay').textContent = formatCurrency(annualWithdrawal);
document.getElementById('socialSecurityDisplay').textContent = formatCurrency(socialSecurity);
document.getElementById('pensionDisplay').textContent = formatCurrency(pension);
document.getElementById('totalAnnualIncome').textContent = formatCurrency(annualWithdrawal + socialSecurity + pension);
document.getElementById('savingsLastUntil').textContent = yearsLast;
// Update chart
updateWithdrawalChart(yearLabels, balanceData);
return {
monthlyIncome: monthlyWithdrawal + monthlySocialSecurity + monthlyPension,
yearsLast: yearsLast
};
}
// Update savings chart
function updateSavingsChart() {
const ctx = document.getElementById('savingsChart').getContext('2d');
// Destroy existing chart if it exists
if (window.savingsChart) {
window.savingsChart.destroy();
}
// Get calculated values
const currentAge = parseInt(document.getElementById('currentAge').value) || 30;
const retirementAge = parseInt(document.getElementById('retirementAge').value) || 65;
const yearsToRetirement = Math.max(0, retirementAge - currentAge);
// Generate labels for x-axis
const labels = [];
for (let i = 0; i <= yearsToRetirement; i++) {
labels.push(currentAge + i);
}
// Create chart
window.savingsChart = new Chart(ctx, {
type: 'line',
data: {
labels: labels,
datasets: [
{
label: 'Projected Savings',
data: Array(yearsToRetirement + 1).fill(0).map((_, i) => {
const currentYear = i;
const currentSavings = getNumericValue('currentSavings');
const monthlyContribution = getNumericValue('monthlyContribution') * 12;
const expectedReturn = parseFloat(document.getElementById('expectedReturn').value) / 100 || 0;
// Simple projection (for demo purposes)
return currentSavings * Math.pow(1 + expectedReturn, currentYear) +
monthlyContribution * (Math.pow(1 + expectedReturn, currentYear + 1) - 1) / expectedReturn;
}),
borderColor: '#3b82f6',
backgroundColor: 'rgba(59, 130, 246, 0.1)',
borderWidth: 2,
fill: true,
tension: 0.4
}
]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Retirement Savings Projection',
font: {
size: 16
}
},
legend: {
position: 'bottom'
},
tooltip: {
callbacks: {
label: function(context) {
return `Age ${context.label}: ${formatCurrency(context.raw)}`;
}
}
}
},
scales: {
x: {
title: {
display: true,
text: 'Age'
}
},
y: {
title: {
display: true,
text: 'Savings'
},
ticks: {
callback: function(value) {
return formatCurrency(value);
}
}
}
}
}
});
}
// Update withdrawal chart
function updateWithdrawalChart() {
const ctx = document.getElementById('withdrawalChart').getContext('2d');
// Destroy existing chart if it exists
if (window.withdrawalChart) {
window.withdrawalChart.destroy();
}
// Get calculated values
const retirementYears = parseInt(document.getElementById('retirementYears').value) || 30;
const labels = Array.from({length: retirementYears + 1}, (_, i) => i);
// Create chart
window.withdrawalChart = new Chart(ctx, {
type: 'line',
data: {
labels: labels,
datasets: [
{
label: 'Remaining Savings',
data: Array(retirementYears + 1).fill(0).map((_, i) => {
const retirementSavings = getNumericValue('retirementSavingsAmount');
const annualWithdrawal = getNumericValue('annualWithdrawal');
const investmentReturn = parseFloat(document.getElementById('investmentReturn').value) / 100 || 0;
// Simple projection (for demo purposes)
if (i === 0) return retirementSavings;
const prevValue = window.withdrawalChart?.data.datasets[0].data[i-1] || retirementSavings;
return Math.max(0, (prevValue - annualWithdrawal) * (1 + investmentReturn));
}),
borderColor: '#10b981',
backgroundColor: 'rgba(16, 185, 129, 0.1)',
borderWidth: 2,
fill: true,
tension: 0.4
}
]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Retirement Withdrawal Projection',
font: {
size: 16
}
},
legend: {
position: 'bottom'
},
tooltip: {
callbacks: {
label: function(context) {
return `Year ${context.label}: ${formatCurrency(context.raw)}`;
}
}
}
},
scales: {
x: {
title: {
display: true,
text: 'Years in Retirement'
}
},
y: {
title: {
display: true,
text: 'Remaining Savings'
},
ticks: {
callback: function(value) {
return formatCurrency(value);
}
}
}
}
}
});
}
// Event listeners
document.getElementById('calculateSavings').addEventListener('click', calculateRetirementSavings);
document.getElementById('calculateWithdrawal').addEventListener('click', calculateWithdrawal);
// Auto-calculate when inputs change
document.querySelectorAll('#savings-tab input, #savings-tab select').forEach(input => {
input.addEventListener('change', calculateRetirementSavings);
input.addEventListener('input', calculateRetirementSavings);
});
document.querySelectorAll('#withdrawal-tab input, #withdrawal-tab select').forEach(input => {
input.addEventListener('change', calculateWithdrawal);
input.addEventListener('input', calculateWithdrawal);
});
// Initial calculations
document.addEventListener('DOMContentLoaded', () => {
calculateRetirementSavings();
calculateWithdrawal();
});