Net Worth Calculators
Future Net Worth Calculator
Project what your net worth could grow to, based on your current net worth, income, savings rate, and an investment growth assumption — in nominal dollars and today's dollars.
Project your future net worth
Models your net worth compounding forward using your income and savings rate.
Treats your whole net worth as one compounding balance rather than modeling each asset and debt separately, and assumes a smooth average return — real markets don't grow in a straight line. Use this for long-range planning direction, not a precise year-by-year forecast.
How to calculate future net worth
To calculate future net worth, grow your current net worth by an assumed annual return, and add each year's new savings (income × savings rate) on top — then repeat for every year in your time horizon. That's what any real future net worth calculator or net future worth calculator is doing under the hood, whether it shows you the formula or not. It's the same compounding logic behind a retirement calculator, applied to your whole net worth instead of just one account.
Income itself grows each year too: Incomet = Incomet-1 × (1 + income growth rate).
This calculator runs that loop for you across your full time horizon, which is what you're really asking when you calculate future net worth by hand in a spreadsheet — it's just tedious to do manually beyond a few years, especially once income growth is layered on top of investment growth.
Why income belongs in the calculation
A future net worth calculator with income search reflects a real gap in simpler tools: many "net worth growth" calculators only compound your existing balance and ignore the fact that most people's net worth grows primarily from new savings, not investment returns, in the early years — investment growth only starts to dominate once the balance itself is large. Modeling income (and a realistic raise assumption) captures that shift instead of understating your trajectory in years one through ten.
Choosing an investment growth rate
This is the assumption that matters most, and it's worth grounding in real data rather than a round number. The S&P 500's long-run nominal average annual return is close to 10%; after accounting for inflation (historically about 3% per year per Bureau of Labor Statistics CPI data), the long-run real return has been closer to 6–7%. This calculator defaults to 7% as a moderate, blended assumption — reasonable for a diversified portfolio, but you should lower it for a more conservative or bond-heavy allocation, and raise it only with real caution, since sequences of below-average years early in your timeline can matter more than the long-run average.
| Assumption | Typical figure | Use when |
|---|---|---|
| Conservative | 4–5% | Bond-heavy, shorter time horizon, lower risk tolerance |
| Moderate (default) | 6–7% | Balanced stock/bond mix, typical long-term investor |
| Aggressive | 8–10% | Equity-heavy, long time horizon, higher volatility tolerance |
Nominal dollars vs. today's dollars
A future value of net worth calculator should always distinguish between these two, because they answer different questions. The nominal figure is the actual dollar amount your accounts would show on that future date. The inflation-adjusted figure — what that nominal amount would buy at today's prices — is the more honest way to judge whether you're actually getting wealthier in real terms, since a dollar 20 years from now buys meaningfully less than a dollar today. Toggle the inflation adjustment above to see both.
What this projection doesn't capture
This tool intentionally keeps the model simple: it treats net worth as one number rather than separately projecting each asset's growth against each debt's payoff schedule, and it assumes a smooth, constant annual return rather than the real year-to-year volatility markets actually show — no year here looks like 2008 or 2022. For a single directional projection, that simplification is a reasonable trade-off; for a plan that needs to survive a bad sequence of early returns (most relevant close to retirement), a full simulation is the more appropriate tool.
Once you have a projected number, it's worth checking where that would actually rank — our Net Worth Percentile Calculator shows how a given net worth compares to U.S. households by age, using Federal Reserve data. If your projection includes a pension, our Pension Net Worth Calculator can convert that income stream into a present-value number to fold into your starting figure. And if part of your "assets" is a business, run it through our Tangible Net Worth Calculator first to strip out goodwill and other intangibles.
Historical S&P 500 return figures referenced against NYU Stern (Damodaran) long-run return data; inflation figures referenced against Bureau of Labor Statistics CPI data via Federal Reserve Economic Data (FRED). This is a planning projection based on assumptions you control, not a guarantee — actual returns, income growth, and inflation will differ from any fixed assumption.
Frequently asked questions
Before you commit to a savings plan.
How do you calculate future net worth?
Grow your current net worth by an assumed annual investment return, and add each year's new savings (your income times your savings rate) on top — compounding both together across your time horizon. Income itself typically grows too, from raises.
What growth rate should I use?
6–7% is a common moderate assumption for a diversified portfolio, based on the S&P 500's long-run real (inflation-adjusted) return of roughly that range historically. Use 4–5% for a more conservative, bond-heavy allocation, or 8–10% only for an aggressive, equity-heavy portfolio with a long time horizon.
Should I look at the nominal number or the inflation-adjusted number?
Both, for different purposes. The nominal number is what your accounts will actually show. The inflation-adjusted ("today's dollars") number tells you the real purchasing power of that amount — the better figure for judging whether you're actually building wealth versus just keeping pace with rising prices.
Does this calculator account for market volatility?
No — it uses one constant average annual return rather than simulating the real year-to-year ups and downs markets show. That makes it a good directional projection, but not a substitute for a full Monte Carlo-style simulation if you're close to a point where sequence-of-returns risk matters, like early retirement.
Why does income matter so much in a net worth projection?
In the early years of building wealth, new savings from income typically add more to net worth than investment returns do — returns only start to dominate once your balance is large. A projection that ignores income and only compounds your current balance tends to understate your trajectory, especially in the first decade.