Future value with annual, half-yearly, quarterly, monthly or daily compounding.
Updated
| Year | Contributed | Interest (year) | Balance |
|---|---|---|---|
| 1 | ₹1,00,000 | ₹8,000 | ₹1,08,000 |
| 2 | ₹1,00,000 | ₹8,640 | ₹1,16,640 |
| 3 | ₹1,00,000 | ₹9,331 | ₹1,25,971 |
| 4 | ₹1,00,000 | ₹10,078 | ₹1,36,049 |
| 5 | ₹1,00,000 | ₹10,884 | ₹1,46,933 |
| 6 | ₹1,00,000 | ₹11,755 | ₹1,58,687 |
| 7 | ₹1,00,000 | ₹12,695 | ₹1,71,382 |
| 8 | ₹1,00,000 | ₹13,711 | ₹1,85,093 |
| 9 | ₹1,00,000 | ₹14,807 | ₹1,99,900 |
| 10 | ₹1,00,000 | ₹15,992 | ₹2,15,892 |
Educational only — not financial or tax advice. Talk to a qualified advisor before making decisions with real money.
Quick start
Enter principal, annual rate and tenure. Pick how often the rate compounds (annually, half-yearly, quarterly, monthly, daily) to see the maturity value and year-by-year growth.
Principal, annual rate (%), tenure (years) and currency. Default Indian Rupees, switch to USD / EUR / GBP if needed.
More frequent compounding gives slightly higher returns. Use 'Effective Annual Rate (EAR)' on the result card to fairly compare products at different frequencies.
Maturity amount, total contributions and interest earned. The year-by-year table makes the compounding curve concrete — watch the interest column accelerate.
In-depth guide
Compound interest is interest calculated on the principal and on the interest already earned. It's the single most important concept in personal finance — at 8% per year, a one-time investment doubles every nine years; at 12%, every six. This page is a fast guide to the math, with examples in Indian Rupees.
Future value with compound interest:
A = P × (1 + r/n)^(n × t)
Interest earned = A − P.
Example. ₹1L at 8% per year for 10 years, compounded annually: A = 100,000 × (1.08)^10 = ₹2,15,892 — so ₹1,15,892 of interest on the original ₹1L.
Simple interest stays linear: ₹1L at 8% earns ₹8k every year, no matter how many years pass. Compound interest curves upward because each year's interest joins the principal.
₹1L at 8%, simple vs annually compounded:
The longer the horizon, the more compounding dominates. That's why "start investing early" is the single most repeated piece of personal-finance advice.
At the same nominal annual rate, more frequent compounding yields slightly more. Take ₹10L at 8% for 10 years:
The differences shrink at high frequencies — daily and continuous are nearly identical. To fairly compare two products with different compounding, use the Effective Annual Rate (EAR): EAR = (1 + r/n)^n − 1. 8% compounded monthly has EAR 8.30%; 8% compounded quarterly has EAR 8.24%.
Rule of 72: years to double ≈ 72 / rate%. At 6%, money doubles in 12 years; at 8%, in 9 years; at 12%, in 6 years. Accurate within ~5% for rates between 6% and 12%.
Rule of 114: years to triple ≈ 114 / rate%. At 8% your money triples in ~14 years.
Rule of 144: years to quadruple ≈ 144 / rate%. At 8% your money 4x's in ~18 years.
Real returns: subtract inflation. If inflation runs 6%/yr and you earn 8% nominal, your purchasing power grows at only ~2%/yr. Always plan with real (post-inflation, post-tax) numbers for long-horizon goals.
Educational only — not financial advice.
Browser-first by design. The tool page explains any exception before you use it.
Your money amounts, rates, dates, and calculated scenarios stay in the browser. EpitomeTool does not upload finance inputs or generated results to a server.
No. Every calculation runs in your browser. Nothing is sent to a server, logged, or stored.
A = P(1 + r/n)^(nt), where P is principal, r is the annual rate (decimal), n is the number of compounding periods per year (1=annually, 2=half-yearly, 4=quarterly, 12=monthly, 365=daily) and t is years. Interest earned is A − P.
Simple interest is calculated only on the original principal: SI = P × r × t. Compound interest is calculated on the principal AND the accumulated interest from previous periods, so it grows exponentially. Over long horizons the difference becomes massive — ₹1L at 8% for 30 years gives ₹2.4L simple vs ₹10.06L compounded annually.
More frequent compounding gives slightly higher returns at the same nominal rate. ₹10L at 8% for 10 years gives ₹21.58L annual, ₹21.91L half-yearly, ₹22.08L quarterly, ₹22.20L monthly, ₹22.25L daily. The differences shrink at high frequencies and approach a continuous-compounding limit of P·e^(rt).
The actual annual return after accounting for intra-year compounding: EAR = (1 + r/n)^n − 1. An 8% rate compounded monthly has EAR = (1 + 0.08/12)^12 − 1 = 8.30%. Use EAR to fairly compare two products with different compounding frequencies.
A shortcut: years to double ≈ 72 / annual rate %. At 8% your money roughly doubles in 9 years; at 12% in 6 years. It's accurate to within ~5% for rates between 6% and 12%, which covers most real-world fixed-income and equity returns.
This calculator shows nominal (pre-tax, pre-inflation) returns. To get the real return, subtract the inflation rate (or use the Fisher equation: real ≈ nominal − inflation). For taxes, apply your slab on the interest portion for fixed deposits / debt funds; equity funds have separate LTCG/STCG rules.
No — the optional contribution input assumes a constant amount at the end of each compounding period. For irregular cashflows (lump-sum top-ups, varying amounts) you need XIRR — try a spreadsheet or a dedicated XIRR calculator.
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