compound interest calculator
see how savings could grow with compound interest, regular deposits and a chart of the balance over time.
runs on your device · free · no sign-up
loading tool…
frequently asked questions
what is the compound interest formula?
A = P(1 + r/n)^(nt), where P is the starting amount, r the annual rate, n the compounding periods per year and t the years. monthly deposits are added on top.
how does compounding frequency matter?
more frequent compounding earns slightly more, because interest is added to the balance sooner. daily beats monthly beats yearly at the same rate.
are these returns guaranteed?
no. this is a projection with a fixed rate. real investments vary and can lose value.