Compound Interest Calculator

Visualize how consistency, compounding, and time can grow your money over the long term.

Use this calculator to estimate future value based on a starting amount, recurring monthly contributions, and an expected annual return.

Initial Amount ($)

Monthly Contribution ($)

Years

Annual Interest Rate (%)

Final Value

Total Contributions

Total Interest

Projection

Compound Growth Over Time

See how total value grows compared with total contributions over the years.

Why compounding matters

Compound interest rewards consistency and time. Even modest recurring investments can grow meaningfully over long horizons.

Compound Interest Calculator FAQ

Compound interest means your returns earn additional returns over time, helping growth accelerate as the years pass.

It estimates future value using your starting amount, monthly contributions, time horizon, and annual return assumption.

Regular contributions increase your invested capital and can significantly improve long-term results through consistency.

The longer your money stays invested, the more opportunities it has to generate returns on previous gains.