Compound Interest Calculator
Calculate projected future value, total contributions and interest under different contribution, return and compounding assumptions.
Open Compound Interest Calculator →Read the Compound Interest Guide →Calculator category
Financial Calculators
Explore tools for compounding, contributions and long-term growth so you can see how rate, time and contribution assumptions affect a projected outcome.
Compound growth and investment planning
Financial projections are sensitive to both time and assumptions. A compounding calculator can show how an initial amount and recurring contributions may grow under a selected return and compounding frequency. The result is a projection, not a guarantee of future investment performance.
How to interpret a growth projection
Compare scenarios rather than relying on a single assumed return. Small changes in the rate or investment period can materially change a long-term projection, especially when compounding is applied repeatedly.
Use the displayed values to understand the mathematics of the scenario you entered. Actual investment returns, taxes, fees and market conditions may differ from the assumptions used in the calculator.