Retirement savings calculator
Project your retirement balance from current savings, monthly contributions and an expected annual return.
Required fields are marked with an asterisk (*).
Retirement savings are built by accumulation: a fixed monthly contribution growing with compound interest over many years. This calculator projects your balance at retirement from your current savings, monthly contribution and expected annual return, showing your total contributions and the interest earned on top of them.
Formula
Projected balance = current savings × (1 + monthly rate)^months + monthly contribution × ((1 + monthly rate)^months − 1) ÷ monthly rate, where monthly rate = annual return ÷ 12.
When is this useful?
Use this calculator when planning for retirement or reviewing an existing saving plan, to project your future balance and see how raising your monthly contribution or the term changes the result.
Worked example
Example using the calculator’s values: current savings of 10,000 Jordanian dinars, a monthly contribution of 200 dinars, an annual return of 6%, over 20 years.
The projected retirement balance is about 125,510 dinars.
Your total contributions are about 58,000 dinars, and the interest earned about 67,510 dinars.
Assumptions
- Interest compounds monthly on the growing balance.
- The annual return is entered as a percentage and converted to a monthly rate automatically.
- The monthly contribution is a fixed amount for the whole saving period.
- Current savings are left untouched and unchanged.
- Returns are not guaranteed, and inflation erodes the purchasing power of the nominal balance.
Common mistakes
- Entering the monthly rate directly in the annual return field, which inflates the result.
- Forgetting to deduct management fees and taxes when estimating the net return.
- Relying on an optimistic annual return without recognizing that returns are not guaranteed.
- Ignoring inflation when judging the nominal balance at retirement.
Frequently asked questions
Is the return after or before inflation?
The calculator uses the nominal return as entered and does not deduct inflation. For a figure in today’s purchasing power, subtract your expected inflation rate from the annual return.
What if my contributions are irregular?
The calculator assumes a fixed monthly contribution. For variable amounts, use a rough average and treat the result as an estimate.
Does the balance include other assets like property?
No. The calculator covers cash only: your current savings and monthly contribution, with no other assets.
Methodology and review
Results are estimates for informational purposes only and do not constitute investment advice or a guarantee of returns.