Enter a principal amount, annual interest rate, time period and compounding frequency to see the total future value and total interest earned.
Calculated locally in your browser — nothing is sent to our server.
How This Is Calculated
This uses the standard compound interest formula: A = P(1 + r/n)^(n×t), where P is the principal, r is the annual rate, n is the compounding frequency per year, and t is the time in years.
This is a mathematical projection based on the rate you enter — it is not a guaranteed or predicted real-world return, and does not account for taxes, fees, or inflation.
FAQ
What compounding frequency should I choose?
Use whatever frequency your actual investment or account compounds at — check your bank or provider’s terms. Monthly is common for savings accounts; annually is common for simpler illustrations.
Does this account for additional periodic contributions?
No — this calculates growth of a single lump-sum principal only, not regular additional deposits. See the SIP Calculator for a recurring-contribution calculation.