Savings Rate Calculator
Explore your savings rate and a simplified long-term projection.
Savings rate calculator
Know the share you save. Explore a separate long-term model.
Updates as you typeYour numbers
Start with the example. Change it to fit your plan.
Amount in US dollars.
Amount in US dollars.
Only include balances you want to project at the chosen rate. Values in US dollars.
Effective annual return assumption. Actual returns vary. Values in percent.
The model uses 25× annual spending, often called the 4% rule, as an illustrative target. It does not establish a safe retirement date. It excludes taxes, fees, changing income, withdrawals and market volatility.
Your result
$800 of every $4,000 take-home pay is set aside.
A long-term scenario, not a retirement forecast
The long-term scenario
- Projected savings
- Model target
View chart values
| Time | Projected savings | Model target |
|---|---|---|
| 0 yr | $5,000 | $960,000 |
| 2 yr | $25,639.51 | — |
| 3 yr | $36,739.54 | — |
| 5 yr | $60,632.38 | — |
| 6 yr | $73,482.05 | — |
| 8 yr | $101,140.96 | — |
| 9 yr | $116,016.06 | — |
| 11 yr | $148,034.74 | — |
| 12 yr | $165,254.55 | — |
| 14 yr | $202,320.16 | — |
| 15 yr | $222,254.23 | — |
| 17 yr | $265,162.33 | — |
| 18 yr | $288,238.50 | — |
| 20 yr | $337,909.98 | — |
| 21 yr | $364,623.55 | — |
| 23 yr | $422,124.47 | — |
| 24 yr | $453,048.75 | — |
| 26 yr | $519,613.30 | — |
| 27 yr | $555,412.04 | — |
| 29 yr | $632,468.82 | — |
| 30 yr | $673,910.34 | — |
| 32 yr | $763,113.17 | — |
| 33 yr | $811,086.89 | — |
| 35 yr | $914,350.33 | — |
| 35 yr 10 mo | $960,440.80 | $960,000 |
Keep a copy of your plan
Excel and PDF use the numbers above. Google Sheets opens a separate example in your Drive; to bring your own numbers, import the downloaded Excel file.
Saved only in this browser.
Choose the first date. Reminders follow the deposit or payment schedule above, with the last amount adjusted when needed. No calendar account is connected.
Files are created in this browser. Financial inputs are not sent to our server.
Results are educational estimates from your inputs and the assumptions shown, rather than a guarantee or individual financial advice. About our estimates.
Make this plan work for you
Calculate what share of your take-home pay you save each month and explore a simplified long-term projection. The filled example uses a twenty percent savings rate.
- Enter your monthly take-home pay, the amount you save each month, and current savings.
- Enter an effective annual return after inflation for the simplified projection.
- Change the inputs to test how a higher savings rate changes the timeline.
A filled example
Example inputs: Monthly take-home pay: $4,000.00; Saved each month: $800.00; Current savings: $5,000.00; Effective annual return after inflation: 5%
| Plan | Result |
|---|---|
| Your savings rate | 20% |
| Annual savings | $9,600.00 |
| Illustrative 25× annual-spending target | $960,000.00 |
| Months to the model target | 430 |
These results use the example inputs shown above. Change the inputs in the calculator to explore your own plan.
Testing changes and saving your work
One lever you control is the amount saved each month, so raise it and watch Months to the model target shorten. You can also adjust the return assumption or current savings to see how each affects the timeline. The calculator runs entirely in your browser and no financial inputs are uploaded. Download the Excel or PDF version to keep your current inputs, or open the Google Sheets copy of the master example, which requires a Google account and holds the example figures rather than your browser entries. No BudgetTrellis account is needed.
Reading the twenty percent example
The filled example uses $4,000 monthly take-home pay and $800 saved each month, producing a 20% savings rate and $9,600 in annual savings. The 25× annual-spending model target and Months to the model target rows show how long the current pace would take to reach that model under a 5% effective annual return after inflation. If the months row looks long, raise Saved each month and compare the shortened timeline before deciding what pace to commit to.
Frequently asked questions
What return should I enter?
Enter an effective annual return after inflation, meaning growth measured in today's purchasing power. The field is an assumption you can change, and monthly interest is rounded to the cent before each deposit is applied.
Is the 25x annual-spending target a retirement plan?
No. It is a simplified model, not a safe retirement date or personalized advice. Use it to compare savings rates, then consider your own circumstances when planning.
Do I need an account to use the calculator?
No. It runs in your browser and no financial inputs are uploaded. Excel and PDF downloads include your current inputs, while the Google Sheets copy of the master example requires a Google account and does not transfer browser inputs.
Keep your plan moving
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