Calc4Living

Personal Finance & Budget · Free calculator

Savings Goal Calculator

Estimate complete contribution periods needed to reach a savings target, optionally including assumed interest.

Your inputs

Prefilled values are editable examples. Enter your own amounts. All fields are required unless marked optional. Results clear whenever an input or name changes.

Labels only; no exchange rates or conversion. Use one currency for all amounts.

The contribution amount applies to each selected period. Changing frequency keeps that amount, changing the annual contribution. Deposits occur at period end.

Nominal annual rate compounded at the selected contribution frequency. No future return is guaranteed.

Enter your own amount in the selected currency.

Enter your own amount in the selected currency.

Enter your own amount in the selected currency.

Your calculation

Results

Review the assumptions, enter your values and calculate.

How long will it take to reach my savings goal?

Without interest: balance after n periods = current savings + n × contribution. With periodic rate r = nominal annual rate ÷ periods/year: balance = current × (1+r)^n + contribution × ((1+r)^n − 1)/r. Find the first complete period reaching the target. Deposits occur at each period’s end, after interest.

Worked example

A target of 10,000, current savings of 1,000 and monthly contributions of 250 reaches the goal in 36 months (3 years) without interest. Future contributions total 9,000 and interest is 0. At a hypothetical 12% nominal annual rate, 1,000 with no deposits grows to 1,020.10 after two monthly periods.

Assumptions & limitations

  • Uses fixed end-of-period contributions and a constant nonnegative nominal annual rate compounded at the contribution frequency: 12 monthly, 52 weekly, 26 fortnightly or 1 annual period per year. This is not an effective annual yield calculation. Years are periods divided by that frequency, not calendar dates.
  • Future returns are uncertain. Taxes, fees, inflation, contribution changes and variable returns are excluded. Entered rates are hypothetical assumptions, not promised returns or investment recommendations.
  • Already-reached goals need zero future periods. With no contributions, reaching a higher target requires both a positive starting balance and positive interest; otherwise the goal is unreachable under these assumptions. Final balances include the entire last contribution and may exceed the target.
  • Contributions and interest shown are future amounts, separate from current savings. Very large results or periods beyond safe numeric representation are rejected. Currency selection changes labels only.