Interest and APR Calculators
Calculate simple and compound interest with online interest and APR calculators. See how varying number of periods and compounding frequency affects nominal interest rate, effective interest rate, periodic and equivalent interest rate calculations.
A = P(1 + rt) (Principal + Interest)
I = Prt (Interest Only)
A = P(1 + r)t and A = P(1 + r/n)nt and A = Pert
Excel Function Method for A = P(1 + r)t