it will have a 'type' attribute with 'submit' as value. 401k Retirement Calculators This calculator will help you to determine how much to invest in your 401k retirement plan in order to reach your goals. Enter the information requested below and click the "Calculate" button. Current Age: Retirement Age: Annual Income: Inflation Rate: Rate of Return: Amount needed at Retirement: Amount Needed to Invest: function calculate(){ var age = document.getElementById("age").value; var retirementAge = document.getElementById("retirementAge").value; var income = document.getElementById("income").value; var inflationRate = document.getElementById("inflationRate").value/100; var returnRate = document.getElementById("returnRate").value/100; var years = retirementAge - age; var amountNeeded = (income - (income * inflationRate)) * years; document.getElementById("amountNeeded").value = amountNeeded.toFixed(2); var amountToInvest = amountNeeded * (1-(1/Math.pow((1+returnRate), years))); document.getElementById("amountToInvest").value = amountToInvest.toFixed(2); } The Benefits of 401K Retirement Calculators for Your Future When that time comes for you to plan for the future, it can be intimidating to determine how much you need to save for retirement. This can be especially true when it comes to planning for your 401k. Fortunately, retirement calculators are a great tool to help identify what savings you need to make. For those who are not familiar with 401k retirement calculators, this article will discuss what they are, how they work, and the benefits of using one.Read on to learn more. What is a 401K Retirement Calculator? A 401k retirement calculator is a tool designed to help you determine how much you need to save for retirement. It will help you project how much you will need to save each month, and how much you will need to have saved before you reach retirement. The calculator will also take into account any assumptions you make about future investment return rates, inflation rates, and taxes. This allows you to easily identify what adjustments you need to make to achieve your desired retirement goals. How to Use a Retirement Calculator Using a retirement calculator is relatively simple. First, you will need to input your current age, expected retirement age, and what savings goals (such as the amount you need to save) you are looking to accomplish. Then, you will need to input your estimated investment return rates, inflation rates, and taxes. Finally, it will generate an estimate of how much you need to save each month, or, how much you have to save in order to reach your retirement goals. Benefits of Using A Retirement Calculator The primary benefit of using a retirement calculator is that it can provide a great deal of insight into planning for the future. It can help you identify how much you need to save in order to reach your retirement goals. Additionally, if you make changes to your assumptions, it can help you manage and adjust your savings goals. For those who are looking to save for retirement, it can be a great tool for managing your retirement goals. Conclusion A 401K retirement calculator is a great tool for anyone looking to save for retirement. It can help you identify the savings goals you need to set in order to reach retirement. Additionally, it can provide great insight into the future by helping you adjust your savings goals, based on changing assumptions about investment returns, inflation rates, and taxes. With a retirement calculator, it is easy to see how much you need to save to reach your retirement goals.