Turn ages into a horizon
Years remaining equals target retirement age minus current age. A target below the current age is rejected. A target equal to the current age leaves no accumulation time. This connects the projection to a planning milestone without treating the selected age as an official retirement rule.
Separate savings, growth and purchasing power
The schedule tracks current principal, recurring deposits, gross growth and balance fees. The nominal ending balance is then discounted by the inflation assumption to express today’s purchasing power. Fixed nominal deposits are not automatically indexed to inflation, and no pension or other income is inferred.
Accumulation is only one phase
An accumulation projection says what an account might reach under constant assumptions. It does not determine how much can safely be withdrawn for life. Use the withdrawal tool to inspect a separate spending scenario and remember that a smooth return cannot assess sequence-of-returns risk or market drawdowns.
Questions about this calculation
How can I check the inputs behind the result?
Open “Show calculation & assumptions” for the formula and timing conventions, then inspect the breakdown. Export CSV to keep the last calculated inputs and numerical results together.
Does this include taxes or changing market returns?
No tax calculation or variable market-return path is included. The task-specific assumptions above describe the scope. Calculated values are conditional on the inputs, not personalized recommendations.
Learn more
Start with the step-by-step future value formula guide.
Open the formula guide →How to calculate future value · Spreadsheet calculations · All learning guides
Use these figures to explore assumptions. Actual interest, returns, fees, taxes and purchasing power can differ.