Calculator Simple Interest

Simple Interest Calculator

Enter the values you know. The value left out will be automatically calculated and displayed.

Total principal amount if known
Interest Rate % per year
Time period quantity based on previous selection ( days/weeks/months etc).
Total (Principal + Interest)

Simple Interest Formula

A Total accrued amount i.e. (principal + interest)
P Principal Amount
I Interest Amount
r Rate of interest per year r = R / 100
t Time period involved in months or years(i.e. Calculation period)