finance
Compound Interest
Final balance, total interest, and EAR for any compounding frequency — with optional monthly contributions and year-by-year growth chart.
Inputs
Compounding Frequency
Results
Final Balance—
Total Contributions—
Total Interest Earned—
Effective Annual Rate EAR—
A = P(1+r/n)^(nt) + PMT·[((1+r/n)^(nt)−1)/(r/n)]
EAR = (1+r/n)^n − 1
EAR = (1+r/n)^n − 1