Retirelens Calculator

How much will my monthly investments grow over time?

Project the future value of your systematic monthly investments. See how compounding, annual step-ups, and time horizon compound your wealth over decades.

Projected corpus

Future corpus at year 20

$463K

Total invested: $208,395.72. Growth from returns: $254,264.01.

Total SIP contributed

$198K

Investment growth

$254K

Your investment details

8%
5%

Increase your SIP by this % each year.

Corpus growth over time

  • Cumulative invested
  • Projected corpus
1234567891011121314151617181920Year$0$150K$300K$450K$600K

Invested vs. growth breakdown

Total investedGrowth from returns$0$65K$130K$195K$260K

What this means

Investing $500/month for 20 years at 8% annual return with a 5% annual step-up produces a corpus of $462,659.73.

Of that total, $208,395.72 came from your own contributions (starting balance + SIP) and $254,264.01 came purely from investment returns — showing the power of compounding over time.

Plan more than your portfolio

Your finances are one lens. A confident retirement also needs clarity on health, purpose, relationships, and legacy — the same pillars we use across Retirelens.

Financial Readiness

Know where you stand and what to do next with your money.

74% of planners reported satisfaction with retirement income vs. 43% of non-planners (Goldman Sachs)

Health & Wellness

Secure solid coverage, stay ahead with preventive care and healthy habits a staple.

68% of adults ages 50–64 said they were concerned that federal policy changes could affect their health insurance coverage. (University of Michigan)

Lifestyle & Purpose

Shape days you look forward to, with steps to get there.

Research shows that a stronger sense of purpose is associated with lower mortality risk among adults over age 50. (American Medical Association)

Social Connections

Strengthen relationships and build a support circle.

A longitudinal study of adults aged 65+ found that older adults with more diverse social networks had a lower risk of death and better cognitive and physical function than those with less diverse networks. (Chico Health Aging Project)

Legacy Planning

Organize your assets and document so your family isn't left guessing.

Without a proper estate plan, more than half of families experience disputes or have assets end up under court control. (LegalShield)

How this calculator works

Returns are compounded monthly using the monthly equivalent of the annual return. The annual step-up multiplies the monthly SIP by (1 + step-up %) at the start of each new year.

Beginning-of-month contributions are added before monthly compounding; end-of-month contributions are added after. The inflation-adjusted corpus divides the final nominal value by the inflation factor over the horizon.

Help

Frequently asked questions

Straight answers to common questions about this calculator.