Compound Interest Calculator
Calculate final amount, accumulated interest and return with compound interest. Supports initial capital, monthly contributions and monthly or annual rates.
Final amount
—
Total contributed
—
Total interest
—
Yield
—
How does compound interest work?
In compound interest, each period's interest is added to the principal, generating new interest. The basic formula is A = P × (1 + r)ⁿ, where A is the amount, P the principal, r the rate and n the period.
With recurring monthly contributions, each contribution earns interest for the remaining periods — the famous "snowball effect".
Related Tools
Roman Numerals Converter
Convert Arabic numbers to Roman numerals and vice versa. Supports values from 1 to 3999. Instant bidirectional conversion.
GCD Calculator
Calculate the Greatest Common Divisor (GCD) of two or more numbers using the Euclidean algorithm. Instant result.
LCM Calculator
Calculate the Least Common Multiple (LCM) of two or more numbers. Instant result in the browser.