Compound Interest Calculator

Investment Calculators

Calculate compound interest and growth of investments over time. The calculator below opens with example inputs and a live result—change any field to model your scenario, or use Clear inputs to reset all fields to zero. For deeper understanding of the underlying concepts, explore our Investing Guide.

Compound Interest

Formula: A = P(1 + r/n)^(nt)

Principal$10,000
Interest Earned$10,096.61
Future Value$20,096.61

Balance Growth Over Time

Future Value Sensitivity

How your future value changes if rate or time horizon differs from your inputs.

Annual RateYearsYears
1y5y10y15y20y
3.0%$10.3K$11.6K$13.5K$15.7K$18.2K
5.0%$10.5K$12.8K$16.5K$21.1K$27.1K
7.0%$10.7K$14.2K$20.1K$28.5K$40.4K
9.0%$10.9K$15.7K$24.5K$38.4K$60.1K
11.0%$11.2K$17.3K$29.9K$51.7K$89.4K

Cells shaded from lower to higher. Your inputs are highlighted in blue.

Future Value

$20,096.61