Every major life goal—whether it is buying your dream home, funding your child's higher education, or building a comfortable retirement nest egg—starts with a Target Corpus.
Traditional SIP calculators ask for an investment amount and tell you the final corpus. The Target Corpus Calculator does the exact opposite: you specify your desired financial milestone (e.g. ₹50 Lakhs, ₹1 Crore, or ₹5 Crores), your timeline, and expected rate of return, and it reverse-engineers the exact monthly SIP required to reach that target with mathematical precision.
How Does the Target Corpus Calculator Work?
Under the hood, the calculator solves the inverse annuity-due compounding equation:
$$ \text{Required SIP} = \frac{\text{Target Corpus} \times r}{(1 + r) \times \left[ (1 + r)^n - 1 \right]} $$
Where:
- Target Corpus: Desired accumulated wealth at maturity.
- $r$: Monthly rate of return ($\text{Annual Rate} / 12 / 100$).
- $n$: Total number of months ($\text{Years} \times 12$).
If you enable an Annual Step-Up (Top-Up), the calculator uses an iterative binary search engine to find the exact starting monthly SIP that scales with your annual salary appraisals.
Popular Target Corpus Benchmarks (12% Return p.a.)
Here is the monthly SIP required to achieve common Indian wealth milestones at an assumed 12% CAGR without step-up:
| Target Corpus | 5 Years Timeline | 10 Years Timeline | 15 Years Timeline | 20 Years Timeline |
|---|---|---|---|---|
| ₹25 Lakhs | ₹30,308 / mo | ₹10,760 / mo | ₹4,955 / mo | ₹2,502 / mo |
| ₹50 Lakhs | ₹60,616 / mo | ₹21,520 / mo | ₹9,910 / mo | ₹5,005 / mo |
| ₹1 Crore | ₹1,21,232 / mo | ₹43,041 / mo | ₹19,819 / mo | ₹10,009 / mo |
| ₹2 Crores | ₹2,42,464 / mo | ₹86,082 / mo | ₹39,638 / mo | ₹20,018 / mo |
| ₹5 Crores | ₹6,06,160 / mo | ₹2,15,205 / mo | ₹99,095 / mo | ₹50,045 / mo |
3 Strategies to Reduce Your Required Monthly SIP
- Start 5 Years Earlier: Extending your timeline from 10 years to 15 years cuts your required monthly deposit by over 53% due to exponential compounding in the later years.
- Use a 10% Annual Step-Up: Increasing your monthly SIP by 10% each year reduces your Year 1 required commitment by up to 40%, making ambitious targets instantly achievable on early-career salaries.
- Diversify across High-Alpha Categories: Selecting broad-market index funds and flexi-cap mutual funds historically delivered 12%–14% long-term CAGRs in India, significantly outpacing traditional fixed deposits.
Related Calculators & Guides
- SIP Calculator — Calculate wealth accumulation for a fixed monthly SIP.
- My First Crore Calculator — Dedicated roadmap for reaching your first ₹1 Crore milestone.
- Step-Up SIP Calculator — Model annual SIP top-ups with your salary growth.
- SWP Calculator — Plan monthly tax-efficient cashflows from your accumulated corpus.