Calculators · ~2 min
“How much will my money grow with compounding?”
See how principal grows at a given rate with yearly, half-yearly, quarterly or monthly compounding.
your money grows to
Final amount
₹1,48,595
Compound interest
₹48,595
Simple interest would be
₹40,000
the guide
By Shivam Bhandari · Reviewed 31 October 2026 · How we write
Compound interest is interest earned on both the original amount and the interest already added. Over time this ‘interest on interest’ makes money grow faster than simple interest.
The more often interest is compounded — yearly, quarterly or monthly — the slightly higher the final amount. Most bank deposits in India compound quarterly.
A = P × (1 + r ÷ k)^(k × t)
A = P × (1 + r ÷ k)^(k × t), where P is principal, r the annual rate, k the compounding frequency and t the number of years.
Simple interest is calculated only on the principal; compound interest is calculated on the principal plus accumulated interest.
Yes, but modestly. More frequent compounding gives a slightly higher final amount at the same rate.
A quick estimate: divide 72 by the annual rate to find roughly how many years it takes money to double. At 8%, about 9 years.