Discount Calculator
Calculate the price after a discount and tax, and see how much you save.
Finance
Finance
Compound Interest Calculator
Explore how an initial amount grows when returns are reinvested.
Enter your values
Your result
Future value
20,096.61
- Initial amount
- 10,000
- Accumulated return
- 10,096.61
- Effective annual return (%)
- 7.23
An estimate based on your inputs. Review the assumptions and method below.
How does this calculator work?
Compounding adds returns to the balance so they earn further returns. The compounding frequency changes the outcome even when the nominal annual rate remains the same.
The formula
Future value = P × (1 + r ÷ m)^(m × t)
What should you know?
- Assumes a constant return with no deposits, withdrawals, fees or taxes.
- The result is a mathematical scenario, not a forecast or guaranteed investment return.
Common questions
How does compound interest differ from simple interest?
Simple interest applies only to the principal. Compound interest applies to the principal and accumulated returns.
Can I include monthly deposits?
This calculator uses an initial amount only. Use the Savings Calculator to include monthly deposits.
Sources and verification
How do we choose formulas and check results?
Sources explain the method or its limits; they do not imply that the linked organizations endorse this calculator.