Compound Interest Calculator — Complete Guide
Compound interest is the interest calculated on the initial principal and also on the accumulated interest from previous periods. It is the basis for how most investments and savings accounts grow over time.
Compound Interest Formula
A = P × (1 + r/n)^(n×t)
- A = Final amount
- P = Principal
- r = Annual interest rate (decimal)
- n = Compounding frequency per year
- t = Time in years
Impact of Compounding Frequency
For ₹1,00,000 at 8% for 5 years: Annual compounding = ₹1,46,933 | Quarterly = ₹1,48,595 | Monthly = ₹1,48,985 | Daily = ₹1,49,176. More frequent compounding always yields more.
Effective Annual Rate (EAR)
The EAR accounts for the compounding effect. A nominal 8% rate compounded quarterly has an EAR of 8.24%. This is the true rate of return.
The Power of Compounding — Albert Einstein's 8th Wonder
Starting at age 25 with ₹5,000/month at 12% CAGR, you'd have ₹3.2 Cr by 60. Starting at 35 with the same amount and rate, you'd have only ₹94L. The 10-year head start triples your corpus.
What is the Compound Interest?
The Compound Interest is a comprehensive, free online tool specifically designed to help you calculate compound interest with different compounding frequencies. Whether you are a professional or just someone looking to manage their personal finances more effectively, our Compound Interest provides instant, highly-accurate results without requiring any sign-ups or downloads.
Free compound interest calculator. Calculate compound interest with daily, monthly, quarterly, or yearly compounding.
How to use this Compound Interest
Using our Compound Interest is simple and intuitive. Just input your required metrics into the form above, and the calculator will instantly map out your exact results alongside any applicable charts and comparative data. Adjust the sliders to run different "what-if" scenarios, and click the Export as PDF button at the top to securely save or print your results. All calculations happen directly in your browser, guaranteeing 100% privacy for your data.
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Our suite of 56 professional-grade calculators is engineered for pinpoint precision and built fully responsive for every device. The Compound Interest is kept up-to-date with the latest standards, allowing you to trust the figures it provides.