Retirement planning
Retirement savings projection
Project retirement savings from your current balance, chosen retirement age and regular contributions, with a purchasing-power comparison.
Your inputs
Complete the fields for your selected method. Zero means intentionally zero, not unknown. Currency selection labels amounts; it does not convert exchange rates.
How this calculation works
balance evolves monthly using supplied effective return; today-money balance = future balance / (1 + inflation)^years
A constant-rate arithmetic scenario, not a forecast or promised return. Supply your own return assumptions; example rates are not recommended investments. Monthly contributions are fixed nominal amounts, not automatically increased for inflation. No taxes, contribution limits, account eligibility, trading costs or benefits are inferred. Negative returns are supported; actual return sequences can differ materially. Return input is after any investment fees but before any applicable tax; no tax treatment is calculated. This does not determine whether a balance is adequate or a retirement age is suitable.
What information do I need?
Use records for the same job, equipment or accounting period. Only the fields for your selected entry method are required. An unknown amount is not zero.
Input definitions and where to find them
- Current age (years): Your current whole age; no date of birth is collected.
- Chosen retirement age (years): Your chosen whole retirement age. This is a planning horizon, not an eligibility or retirement recommendation.
- Current retirement savings balance (selected currency): The balance already available at the start, not future contributions.
- Monthly retirement contribution (selected currency): A fixed amount added each month on the selected timing. Do not count the same contribution twice.
- Assumed effective annual return after investment fees (%): Supply an assumed annual rate on the selected basis. Use effective annual growth or APY unless you specifically have a nominal rate and compounding frequency. The example is not a current quote or forecast.
- Assumed annual inflation (%): Your assumed constant annual inflation rate. It changes purchasing-power comparisons only; this is not a live CPI lookup or prediction.
- When is each monthly contribution added?: Use matching records or a clearly stated assumption for the indicated period. Prefilled figures are illustrative. An unknown value is not zero.
Use the Where to find this value controls beside the inputs for available work-it-out helpers. Estimates remain your assumptions; a helper does not verify the source figures.
Worked example
Example amounts use US dollars (USD).
Example answer: Projected savings at chosen retirement age is $623,785.07 for the illustrative inputs below.
Example inputs
- Current age: 35 years
- Chosen retirement age: 65 years
- Current retirement savings balance: $50,000.00
- Monthly retirement contribution: $500.00
- Assumed effective annual return after investment fees: 5.00 %
- Assumed annual inflation: 2.50 %
- When is each monthly contribution added?: End of month
- Projected savings at chosen retirement age
- $623,785.07
- Projected balance in today’s purchasing power
- $297,384.97
- Starting savings plus added contributions
- $230,000.00
- Modeled growth above contributed money
- $393,785.07
- Projection period
- 360 months
- Effective annual return is converted to an equivalent monthly rate. Inflation does not reduce the nominal account balance; it changes its today-money comparison.
- ━ Nominal balance
- ┄ Today-money balance
These illustrative values are not recommended rates or industry averages. Replace every example input with your own figures.
Use the result well
Project retirement savings from your current balance, chosen retirement age and regular contributions, with a purchasing-power comparison.
Keep inputs on the same scope and time basis. Calculations retain precision internally; displayed values generally round to two decimal places, with extra precision for very small values and whole-unit rounding where required. Economic comparisons describe your supplied assumptions and do not guarantee future results.
This tool provides business arithmetic. It does not approve engineering designs, establish legal or tax treatment, select equipment or certify safe operating conditions.