Compound Interest Calculator: Formula, Examples & Chakravriddhi Byaj
By the QuickYield Team · Published August 24, 2026 · Updated September 16, 2026 · 6 min read
Chakravriddhi byaj (चक्रवृद्धि ब्याज) is the Hindi term for compound interest — interest calculated not just on your original principal, but on your principal plus all the interest it’s already earned. That reinvestment is what makes compounding grow faster than simple interest the longer you leave money invested.
The compound interest formula
Final balance = principal × (1 + rate/n)^(n × years), where n is how many times per year interest compounds — yearly, half-yearly, quarterly, or monthly. A higher n means interest is added and starts earning its own interest more often, which — for the same nominal rate — produces a slightly larger final balance.
Worked example: ₹1 lakh at 8%, compounded quarterly
| Time period | Final balance |
|---|---|
| 5 years | ₹1,48,595 |
| 10 years | ₹2,20,804 |
| 20 years | ₹4,87,544 |
Notice the balance doesn’t just double from 10 to 20 years — it more than doubles (from ₹2,20,804 to ₹4,87,544), because the interest itself is compounding on a larger and larger base each year. This is the effect people mean when they say “time in the market” matters more than almost anything else for long-term compounding.
Does compounding frequency actually matter much?
Less than people expect. On ₹1,00,000 at 8% for 5 years, yearly compounding gives ₹1,46,933, while monthly compounding gives ₹1,48,985 — a difference of about ₹2,000 over 5 years. Compounding frequency matters, but the rate and the time period matter far more. If you’re choosing between two similar deposits, the interest rate itself and how long you leave the money invested will move your final balance much more than whether interest compounds quarterly or monthly. See your own numbers, including compounding frequency, with our Compound Interest Calculator.
Frequently asked questions
›Chakravriddhi byaj kaise calculate karte hain?
Formula hai: final amount = principal × (1 + rate/n)^(n × years), jahan n compounding frequency hai (yearly, quarterly, ya monthly) — jitni jyada baar compound hota hai, utna hi thoda zyada final amount milta hai same rate par.
›What is chakra vaddi and how is it calculated?
Chakra vaddi is the Telugu and Kannada term for compound interest — interest calculated on both your principal and the interest it has already earned. It uses the same formula as chakravriddhi byaj: final amount = principal × (1 + rate/n)^(n × years).
›What’s the difference between simple and compound interest?
Simple interest is calculated only on the original principal every period, so it grows linearly; compound interest is calculated on the principal plus all previously earned interest, so it grows faster the longer it runs.
›Which compounding frequency is best for me?
The difference between yearly and monthly compounding is small compared to the effect of a higher interest rate or a longer time period — don’t let compounding frequency be the deciding factor between two otherwise similar options.
›Does inflation reduce the benefit of compound interest?
Yes — compound interest grows your nominal balance, but if the rate is close to or below inflation, your real (inflation-adjusted) purchasing power may grow much more slowly than the headline number suggests.
Try it yourself
Open the Compound Interest Calculator →
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This article is for general information only and isn’t financial, tax, or legal advice. See our disclaimer.