Home/finance/Compound Interest Calculator

Compound Interest Calculator

See how your savings grow over time with compound interest. Supports monthly/annual deposits and compounding frequencies.

Compound Investment Details

Initial Deposit

Monthly Deposit

Years to Grow

Interest Rate (%)

Compounding Frequency

Estimated Future Balance

Total Principal Contributed$0

Compound Interest Earned+$0

Mathematical Model FormulaA = P(1 + r/n)^(nt) where A is future value, P is principal, r is annual rate, n is compounding frequency, t is time.

Calculate the growth of your investments over time using compound interest with regular contributions.

Project your future 401(k) retirement balance based on annual salary, employer matching, and growth rates.

Estimate your take-home pay or net income after federal, state, and local tax withholdings. Toggle hourly vs salary rates.

Calculate your monthly mortgage payment including principal, interest, taxes, and insurance (PITI). Includes amortization schedule.