Retirement Calculator
Project your retirement savings and estimate monthly retirement income.
Typical long-term market returns range from about 4% to 10% annually.
Enter your values to calculate your result.
Formula
Projected Savings = Current Savings × (1+r)^n + Monthly Contribution × [((1+r)^n − 1) ÷ r]
r is the monthly return rate (annual rate ÷ 12), and n is the number of months from your current age to your retirement age. Estimated Monthly Retirement Income applies the commonly-cited '4% rule' — withdrawing 4% of your savings per year (÷12 for a monthly figure) is a widely-used guideline for a sustainable withdrawal rate, not a guarantee.
Example
Starting at age 30 with $20,000 saved, contributing $500 monthly at a 7% expected return until age 65 (35 years) grows to about $1,130,650 — supporting an estimated $3,769 in monthly retirement income under the 4% rule.
Frequently Asked Questions
What is the '4% rule'?
It's a widely-cited retirement-planning guideline (from research by William Bengen and the Trinity Study) suggesting that withdrawing about 4% of your savings in the first year of retirement, adjusted for inflation thereafter, has historically had a good chance of lasting 30 years. It's a planning guideline, not a guarantee.
Does this account for inflation or Social Security/pension income?
No — this is a nominal projection of your own savings only, before inflation, and doesn't include any other income sources you may have in retirement.