Compound Interest
Project your savings: starting balance, monthly deposits, interest rate and time produce the final value — split into what you put in versus what interest added.
FAQ
How is compound interest calculated here?
Monthly: balance = balance × (1 + rate/12) + contribution, compounded over the full term.
What's a realistic interest rate?
Long-term stock index returns averaged about 7–10% per year historically; savings accounts are typically lower. Past returns never guarantee future ones.
Is inflation accounted for?
No — results are nominal. Subtract expected inflation (e.g. 2–3%) to estimate today's purchasing power.