Investment Growth Calculator
This free compound investment Growth Calculator shows how your money can grow over time — with interactive charts, a year-by-year table, and PDF/Excel export. Works for any currency, anywhere in the world.
Try the Investment Growth Calculator
Your inputs are saved so you can return and edit later. (Turn off to prevent saving. Use private/incognito mode for completely private sessions.)
Year-by-Year Breakdown
How This Investment Growth Calculator Works
This Investment Growth Calculator projects how a starting amount plus regular contributions can grow over time, at a growth rate and compounding frequency you choose. Toggle on Growth Rate Variance to see a realistic upside/downside range instead of a single optimistic line.
Why Compounding Matters
Compounding is often called one of the most powerful forces in personal finance, and the math backs that up. When growth compounds, you don’t just earn a return on your original money — you earn a return on every dollar of growth that came before it. Over a few years the difference is modest. Over a few decades, it becomes the single biggest driver of how much wealth you end up with, often outweighing how much you actually contributed.
That’s why when you start matters more than most people expect. Someone who invests for 10 years in their twenties and then stops can end up with more than someone who invests twice as long starting in their thirties, purely because the earlier money had more time to compound. This calculator’s year-by-year table makes that curve visible instead of abstract — watch how the “Balance” column barely moves in the early years, then accelerates.
The growth rate you enter doesn’t have to come from an interest-bearing account. The same compounding math applies whether your returns come from conventional interest or from profit-based, halal-conscious investments like Shariah-compliant ETFs — the calculator is neutral math, not a specific product. If you want to see the official government explanation of the underlying formula, the U.S. SEC’s Investor.gov compound interest calculator is a solid independent reference.
Frequently Asked Questions
What is compounding?
Compounding is growth calculated on both your original amount and everything it has already earned. Instead of only growing your starting balance, each period’s growth also earns its own growth going forward, which is why the balance accelerates over time rather than climbing in a straight line.
How is compounding different from simple growth?
Simple growth is calculated only on your original principal, so it grows by the same dollar amount every period. Compounding is calculated on your principal plus all previously accumulated growth, so the dollar amount grows larger each period.
How often should growth compound for the best results?
More frequent compounding produces slightly higher returns for the same annual rate, since growth is added to the balance sooner and starts earning its own growth earlier. The difference between monthly and annual compounding is usually small compared to the impact of your growth rate and how long you invest.
Does this calculator work for halal or profit-based investments too?
Yes. The math behind this calculator is neutral — it models any growth rate compounding over time, whether that growth comes from conventional interest or from profit-based, halal-conscious investments like Shariah-compliant ETFs. Just enter your expected growth rate; the calculator doesn’t care what kind of investment produced it.
What growth rate should I use?
There is no single correct answer, since it depends on your investments and risk tolerance. Not sure about yours? Try ezRizq’s free Risk Tolerance Assessment. Many long-term investors use a conservative estimate rather than an optimistic one.
Can I save my progress and come back later?
Yes. With Auto-save turned on, your inputs are saved in your browser and reload automatically next time you visit. Turn it off, or use a private/incognito window, if you’d rather nothing be saved.