ToolPetal
SIP calculator
Maturity value from monthly SIP amount, expected annual return, and tenure in years or months.
Uses the common India-style end-of-month SIP future-value formula. Switch tenure between years and months (10 years = 120 months). Numbers are currency-agnostic; results show an Rs prefix. Expected return and tenure are assumptions you can edit. Not investment advice.
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Defaults snapshot: invested vs estimated returns
Not investment advice. Ignores expense ratio, exit load, taxes, and timing of NAV purchases.
Formula walkthrough
This page estimates SIP maturity with the India-style end-of-month future-value formula. Let P be monthly investment, R expected annual return (%), and n months. Monthly rate i = (R/100) / 12. If i ≈ 0, FV = P × n. Otherwise:
FV = P × (((1+i)^n − 1) / i) × (1+i)
The trailing × (1+i) is the end-of-month convention: each installment is treated as invested at month-end. Invested amount = P × n. Estimated returns = FV − invested. Results show an Rs prefix; the math is currency-agnostic.
Defaults on load: P = 5,000, R = 12%, tenure = 10 years → n = 120, i = 1%, invested = Rs 6,00,000, FV ≈ Rs 11,61,695.38, returns ≈ Rs 5,61,695.38. A 0% rate check should collapse maturity to invested amount.
Tenure units pitfall (years vs months)
The unit control does not rewrite the tenure box. Entering 10 with Years means 120 months; the same 10 with Months means ten months. That is the most common misread of this UI.
- Years →
n = years × 12(must resolve to a whole number of months). - Months →
nas entered.
To match a 10-year horizon in months mode, type 120, not 10. Recalculation runs live on amount, rate, tenure, and unit change.
What the KPIs mean
Maturity / total value is FV. Invested amount is cash you put in (P × n). Estimated returns is the gap the constant-rate formula attributes to compounding, not a fund guarantee. The breakup table repeats monthly rate i so you can audit the percent used.
This end-of-month annuity is not identical to “deposit once and compound” on the compound interest calculator. For dated irregular flows, use the XIRR calculator. Expense ratio, exit load, taxes, and NAV timing are ignored. Not investment advice. See the Disclaimer.
FAQ
How is SIP maturity calculated?
This page uses the common India-style end-of-month SIP future value. Let P be the monthly investment, R the expected annual return in percent, and n the number of months (years × 12). Monthly rate i = (R/100) / 12. If i is about 0, FV = P × n. Otherwise FV = P × (((1+i)^n − 1) / i) × (1+i). Invested amount = P × n. Estimated returns = FV − invested.
What does end-of-month SIP mean?
Each installment is treated as invested at the end of the month, so the formula multiplies by (1+i) after the annuity factor. That matches the SIP maturity many Indian mutual-fund calculators show. It is an estimate from a constant expected return, not a guarantee of fund performance.
Can I switch tenure between years and months?
Yes. Use the Years or Months control next to the tenure box. Years becomes n = years × 12 (10 years is 120 months). Months uses the number as-is. The calculator does not rewrite the tenure box when you change units; 10 years and 10 months are different tenures. Recalculation runs live on input and unit change.
Is anything uploaded?
No. Monthly investment, expected return, tenure, and the math run in your browser. Nothing is sent to ToolPetal.