Find out exactly how long it takes to reach your savings target. Enter your goal, current savings, monthly contributions, and interest rate for a precise timeline with charts and scenario analysis.
How different contribution amounts affect your timeline.
| Year | Opening Balance | Contributions | Interest Earned | Closing Balance | Real Value (Inflation-Adj.) | % of Goal |
|---|
Methodology, formulas, and worked examples.
This calculator uses the future value of a growing annuity formula to determine how many periods are needed to reach a target balance:
When the result is not a whole number, we round up to the next full period and calculate the partial-period balance to find the exact month and day the goal is reached.
The real value column uses the Fisher equation to convert nominal future values into today's purchasing power:
This is critical for long-term savings goals. A $100,000 target in 20 years at 2.5% inflation is only worth $61,027 in today's dollars.
The more frequently interest compounds, the faster your savings grow. Here is the impact on $10,000 at 5% p.a. over 10 years:
Common savings goals and typical timelines at $500/month contributions and 4.5% p.a.:
Increasing contributions by 20% reduces timeline by approximately 15-18% for most goals.
Common questions about savings goals and compound interest.
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