Why is compound interest powerful?

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Compound Interest Calculator

Forecast investment growth with annual, monthly, or daily compound interest plus recurring periodic deposits.

Calculation Parameters

Initial Principal Deposit ($)

Annual Interest Rate (%)

Monthly Contribution ($)

Compounding Frequency

Investment Duration (10 Years)

Future Investment Value

$28,464.56

Over 10 years at 7.5% annual interest, your initial $5000 plus $100/mo contributions will grow to $28,464.56.

Total Interest Earned$11,464.56

Total Contributions$17,000

Initial Principal$5000

Growth Ratio67.4%

Year-by-Year Growth Schedule

Year	Total Invested	Interest Earned That Year	End Balance
Year 1	$6,200	+$438.05	$6,638.05
Year 2	$7,400	+$565.21	$8,403.26
Year 3	$8,600	+$702.25	$10,305.51
Year 4	$9,800	+$849.93	$12,355.44
Year 5	$11,000	+$1,009.07	$14,564.51
Year 6	$12,200	+$1,180.57	$16,945.08
Year 7	$13,400	+$1,365.38	$19,510.45
Year 8	$14,600	+$1,564.53	$22,274.99
Year 9	$15,800	+$1,779.15	$25,254.13
Year 10	$17,000	+$2,010.43	$28,464.56

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How to use the Compound Interest Calculator

Enter Initial Principal

Input starting investment amount.

Set Rate & Monthly Deposit

Specify annual interest rate %, monthly deposit, and compounding frequency.

Review Growth Schedule

Inspect future total balance, total interest earned, and year-by-year schedule.

Key Features & Accuracy

verifiedMonthly Additions Support

Models realistic savings with periodic monthly deposits.

verifiedYearly Schedule Table

Interactive table detailing annual contributions and interest progression.

Frequently Asked Questions

Compound interest generates interest on both your initial principal and the accumulated interest from previous periods.

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