Compound Interest Calculator
Calculate compound growth over time with monthly contributions and custom compounding frequencies.
$34,000.00
$25,029.54
$59,029.54
Portfolio Growth Trajectory (Principal vs. Interest)
Burnjet provides calculators and educational tools for general informational purposes only. Results depend strictly on the mathematical assumptions you enter and do not guarantee future financial, stock market, or tax outcomes. This tool does not provide financial, investment, legal, or professional tax advice.
How It Works
Compound interest accelerates wealth accumulation because returns generate their own returns. Enter your starting principal, expected annual interest rate, duration in years, and optional monthly deposits.
Formula & Logic
A = P(1 + r/n)^(nt) + PMT × [((1 + r/n)^(nt) - 1) / (r/n)]Frequently Asked Questions
Common questions about calculations, assumptions, and edge cases.
The more frequently interest is compounded (e.g. monthly vs annually), the faster your money grows, as interest is added to your principal more often.
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