CalcBox

Simple Interest Calculator

Interest on principal only

₹
₹1 Lakh
% p.a.
years
In
Interest
₹24,000
Principal81%
Interest19%
Principal
₹1,00,000
Interest
₹24,000
Total amount
₹1,24,000
Per year
₹8,000

How it worksSimple interest = P × R × T ÷ 100.

FAQs

What is the simple interest formula?

Simple Interest = P × R × T ÷ 100, where P is principal, R is the yearly rate and T is time in years.

How is simple interest different from compound interest?

Simple interest is calculated only on the original principal. Compound interest is also calculated on interest already earned.

How do I calculate interest for months?

Choose Months in the calculator. It converts months to years (months ÷ 12) automatically.