Investments

Compound Interest Calculator

The eighth wonder of the world. Calculate compound interest at any frequency — annual, half-yearly, quarterly, or monthly compounding.

Inputs

₹1.0 K₹1.00 Cr
%
0.50%30.00%
yr
1 yr40 yr
Final amount
₹2,20,804
Principal
₹1,00,000
Interest
₹1,20,804

Compound growth

The compound interest formula

A = P × (1 + r/n)^(n × t)

Where A is the final amount, P is principal, r is annual rate, n is compounding periods per year, and t is years.

Insight: More frequent compounding = higher final amount. Monthly beats quarterly beats half-yearly beats annual — but the difference shrinks at small rates and grows with time.