Question

how to calculate number of years in compound interest formula

Answer 1

Formulas where n = 1 (compounded once per period or unit t) Calculate Accrued Amount (Principal + Interest) A = P(1 + r)t. Calculate Principal Amount, solve for P. P = A / (1 + r)t. Calculate rate of interest in decimal, solve for r. r = (A/P)1/t - 1. Calculate rate of interest in percent. Calculate time, solve for t.