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Simple Interest Calculator | Easy to Use Online Calculator

Simple Interest Calculator


 P (Initial Investment) : $

 r (Interest Rate) : 

 t (Time Accrued) : 
     

Interest Charged =   $


**Enter your interest rate as a decimal

 

P = Principal (money borrowed)

r = Rate (interest)

t = Years (time)

I = Interest Charged

Simple Interest Formula

Interest Charged (I) =

Prt



Sample Simple Interest Problem


Jayden needs to borrow money for a new car, but he isn't sure what loan is better. If he finances his car through one bank, the dealership will sell the car to him for $500 dollars less than sticker price, they will lend him $10,500 at 6% for 4 years. The other bank will lend him $11,000 for 4 years at 5%. Which loan is in his best interest (HA! no pun intended).

Bank 1:
p = $10,500
r = .06
t = 4

The results show interest charged is: $2520 (don't forget to enter the % in decimal form ie,.06)

Bank 2:
p = $11,000
r = .04
t = 4
The results show interest charged is: $2220.
If Mike goes with bank 1, he will pay $13020, if he goes with bank 2 he will pay $13220. Bank 1 is the better deal.

 

 



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