What this calculator shows you
- Reverse Calculation
- Start with your desired income and find the required savings
- Flexible Duration
- Choose how many years your money should last
- Interest Projection
- See how returns extend your savings power
- Year-by-Year Breakdown
- View detailed balance schedule over time
Reverse Engineering Your Retirement
Instead of starting with what you have, start with what you need. The Annuity Nest Egg Planner works backwards: input your desired monthly income, how long you need it to last, and your expected return rate to find exactly how much you need to save.
The Present Value Formula
This calculator uses the Present Value of Annuity formula: PV = PMT × [(1 - (1 + r)^(-n)) / r]. This determines the lump sum needed today to fund a series of future payments at a given interest rate.
Choosing Your Target Income
Financial experts suggest you'll need 70-80% of your pre-retirement income in retirement. Consider your expected expenses: housing, healthcare, travel, hobbies. Don't forget to account for inflation if planning decades ahead.
Duration Planning
Plan for longevity. If you retire at 65, planning for 25-30 years (to age 90-95) provides a safety margin. Running out of money in retirement is a significant risk—err on the side of caution.
Questions people ask
What return rate should I assume?
For retirement portfolios, a balanced 4-6% return is conservative and realistic. Higher rates require more risk. Lower rates mean you need more savings but offer more security.
Should I include Social Security?
Yes! Subtract your expected Social Security income from your desired monthly income before using this calculator. The result shows the "gap" your savings must fill.
What about inflation?
This calculator uses nominal values. For inflation-adjusted planning, either increase your desired payout to account for future inflation or use a real (inflation-adjusted) return rate.
Education only, not personalized financial, tax or investment advice. Results are estimates based on the numbers you enter; real returns vary and losses happen.