Compound Interest Calculator — Investment Growth

Calculate compound interest with regular contributions. See your investment grow with yearly breakdown and visual chart.

Initial Investment

Annual Rate (%)

Years

Monthly Contribution

Compound Frequency

$106,639.02

Final Amount

$70,000

Total Contributed

$36,639.02

Interest Earned

Year 1Year 10

Contributions Interest

Year	Balance	Contributions	Interest
1	$16,919.19	$16,000	$919.19
2	$24,338.58	$22,000	$2,338.58
3	$32,294.31	$28,000	$4,294.31
4	$40,825.16	$34,000	$6,825.16
5	$49,972.7	$40,000	$9,972.7
6	$59,781.53	$46,000	$13,781.53
7	$70,299.43	$52,000	$18,299.43
8	$81,577.68	$58,000	$23,577.68
9	$93,671.22	$64,000	$29,671.22
10	$106,639.02	$70,000	$36,639.02

Help Us Improve

Be the first to rate!

Frequently Asked Questions

What is compound interest?

Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods — interest on interest.

How often should interest compound?

More frequent compounding (daily vs yearly) yields slightly more. Monthly is most common for savings accounts.

Percentage Calculator

Calculate percentages instantly. Find percentage of a n…

Unit Converter

Convert between units of length, weight, temperature, a…

Scientific Calculator

Free online scientific calculator with trigonometry, lo…

Number Base Converter

Convert numbers between binary, octal, decimal, and hex…

Ratio Calculator

Calculate and solve ratios and proportions. Find missin…