∑ NumberCals

Investment Growth Calculator

Project growth of an initial investment with optional monthly contributions.

About this calculator

The Investment Growth Calculator on NumberCals is a free, mobile-friendly tool for anyone needing to project growth of an initial investment with optional monthly contributions. Enter your values in the form below and the result is computed instantly — no sign-up, no installation, no waiting.

Formula used

FV = PV(1+r)^n + PMT × [((1+r)^n − 1) / r]

What you'll need

  • Initial Amount (e.g. 10000)
  • Monthly Contribution (e.g. 500)
  • Expected Annual Return (%) (e.g. 8)
  • Years (e.g. 20)

What you'll get

  • Future Value
  • Total Contributed
  • Growth from Returns
Formula
FV = PV(1+r)^n + PMT × [((1+r)^n − 1) / r]

Frequently Asked Questions

What return should I assume? +

Long-term diversified equity portfolios have historically returned ~7–10% nominal. Use conservative assumptions for planning.

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