Verified Formula, Methodology & Frequently Asked Questions: Investment CAGR, Rule of 72 & DCA Average-Down Calculator
Calculate Compound Annual Growth Rate (CAGR), total return multiple, doubling time, and cost-basis reduction from buying dips.
Verified Mathematical Equation: CAGR = (Ending Value / Beginning Value)^(1 / Years) − 1; Doubling Years = 72 / CAGR %
Frequently Asked Questions (FAQ)
How does the Investment CAGR, Rule of 72 & DCA Average-Down Calculator work in 2026?
Calculate Compound Annual Growth Rate (CAGR), total return multiple, doubling time, and cost-basis reduction from buying dips. It uses the industry-standard formula (
CAGR = (Ending Value / Beginning Value)^(1 / Years) − 1; Doubling Years = 72 / CAGR %) and updates your KPIs, visual breakdown bar, and comparison table at 60fps as you type or drag the sliders.How can I share my exact scenario with a client, partner, or spouse?
Click the 🔗 Share Scenario Link button at the top of the page. It encodes every input you entered directly into a custom URL so anyone who clicks your link sees your exact numbers immediately.
Is my financial data private and does this work offline?
Yes—100% of calculations happen locally inside your browser using JavaScript. No personal or financial inputs are ever transmitted to an external database.
Can I embed the Investment CAGR, Rule of 72 & DCA Average-Down Calculator on my own website or client portal?
Yes! Click </> Embed on Your Site (Free) above to copy a clean, responsive
<iframe> widget that automatically adapts to any screen size.