Time to reach the next savings milestone at your current contribution rate.

20,000 now, saving 500 a month at 6% return, reaches the 50,000 milestone in roughly 45 months — just over four years. Bump contributions to 700 and the timeline shortens to about 41 months. Adding a zero to the contribution usually matters more than chasing an extra percentage point of return.

What the result means

Primary is months to the milestone. Secondary shows years (decimal form), contributions in that period, and compound growth over the same period. Useful for setting a specific milestone 'arrival date' rather than a vague 'some day' goal.

Why milestones work

Hitting 10k feels better than being at 9,500 and still slogging toward it. Rolling milestone-by-milestone turns a long grind into a series of small wins. Many savers use round numbers (10k, 25k, 50k, 100k) or personally meaningful ones (a year of essential costs, a deposit, a career-break fund).

A worked example

Try the defaults: current balance of 20,000, monthly contribution of 500, milestone target of 50,000, annual return of 6%. The tool returns 45 months. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.

What moves the number most

The result responds to Current Balance, Monthly Contribution, Milestone Target, and Annual Return. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.

The formula behind this

Solves the future-value-of-annuity-with-starting-balance equation for months. Uses monthly compounding with end-of-month contributions. If the milestone is already reached, returns zero months and flags it. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.

How to use this beyond the first run

Re-run the calculation once a year. Life changes — pay rises, new expenses, interest-rate shifts — and the figure that looked right 12 months ago often isn't today. Annual recalibration keeps the plan honest.

What this doesn't capture

The calculation assumes a steady savings rate and a stable interest rate. Real saving journeys include emergencies, windfalls, and rate changes — especially in easy-access products. The figure is a direction of travel, not a guarantee.