Finance Tool

Savings Goal & Runway Calculator

Determine time required to reach target savings with monthly contributions.

Last reviewed by the myCalculator Editorial Team

This calculator uses Australian rules and Australian data sources. Results may not apply outside Australia.

Input Parameters

Calculation Results

Time to Reach Target Goal
4.5 Years (54 months)
Total Target Savings Goal
$50,000
Estimated Final Balance
$50,919.27
Total Deposits Made
$45,500
Total Interest Earned
$5,419.27
Summary: At $750/mo at 4.5% p.a., you will reach your $50,000 goal in approx 4.5 years.

Formula & How Savings Goal & Runway Calculator Works

Mathematical Formula
FV = P(1+r)ⁿ + PMT [((1+r)ⁿ - 1) / r]

Saving a fixed amount each month and earning interest grows the balance using the future value formula FV = PMT × ((1 + r)^n − 1) ÷ r, plus your starting balance grown by (1 + r)^n. Saving $750 a month for 5 years at 5% a year, compounded monthly, gives about $51,005, of which $45,000 is your contributions and about $6,005 is interest. To reach a target, you can raise the monthly amount, extend the time or find a higher rate. Interest rates change and tax is payable on interest earned, so treat the result as an estimate. Start early, because time does most of the work in compound growth.

How to Calculate Savings Goal & Runway Calculator (Step-by-Step)
  1. Enter Target Savings Goal ($): Input your target parameter value.
  2. Enter Starting Deposit ($): Input your target parameter value.
  3. Enter Monthly Savings Contribution ($): Input your target parameter value.
  4. Enter Savings Account Interest Rate (%): Input your target parameter value.
  5. Apply Formula: Calculate using FV = P(1+r)ⁿ + PMT [((1+r)ⁿ - 1) / r].
  6. Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)

How does high yield interest help savings?

Compound interest multiplies your monthly contributions, significantly shortening time to target.

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Official Regulatory & Government Data Sources

Authoritative Standards & Verified Reference Citations

Independent & Verified

Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:

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