Find the interest rate on a loan or investment using any combination of principal, interest, and time.
| Principal | — |
| Final Amount | — |
| Total Interest | — |
| Annual Rate | — |
| Effective Annual Rate | — |
For compound interest: r = n × [(A/P)^(1/(n×t)) − 1] where A=final amount, P=principal, n=compounding periods/year, t=time in years.
Calculatr