PEG Ratio Calculator
Calculate Price/Earnings-to-Growth (PEG) ratio, Peter Lynch fair value target price, and growth-adjusted stock valuation.
What is the PEG Ratio Calculator?
PEG Ratio Calculator is designed to calculate Price/Earnings-to-Growth (PEG) ratio, Peter Lynch fair value target price, and growth-adjusted stock valuation.
The PEG Ratio (Price/Earnings-to-Growth), popularized by legendary Fidelity Magellan fund manager Peter Lynch, adjusts the traditional P/E multiple for a company's expected earnings growth rate to identify fairly valued and undervalued growth stocks.
Financial Calculation Inputs
- Supported Inputs: Principal balances, interest rates, compounding schedules, and tenures.
- Precision Model: High-precision IEEE-754 floating-point arithmetic with decimal rounding.
- Data Privacy: Zero cloud logs. Figures are calculated locally in your browser memory.
Output & Schedule Breakdown
- Visual Analytics: Month-by-month schedules, dynamic charts, and cash flow summaries.
- Currency Support: Multi-currency symbol formatting (USD, EUR, GBP, INR, JPY, CAD, AUD).
- Access Guarantee: 100% unlocked with zero limits, subscriptions, or forced account creation.
How to Use the PEG Ratio Calculator
Follow these 3 simple steps for instant, accurate calculations.
1. Input Stock Price & EPS (or P/E Ratio)
Enter current share price ($) and diluted Earnings Per Share (or direct Price-to-Earnings multiple, e.g. 24.0x).
2. Specify Annual EPS Growth Rate (g)
Enter the expected annual compound EPS growth rate percentage (e.g. 20.0% per year).
3. Analyze PEG Ratio & Peter Lynch Valuation
Review calculated PEG Ratio score, growth-adjusted valuation tier (<1.0 undervalued, >2.0 overvalued), and implied fair value.
Financial Privacy & Architecture Comparison
Why client-side financial calculations protect your privacy better than cloud services.
| Evaluation Criteria | ToolboxDock (Client-Side) | Traditional Online Calculators |
|---|---|---|
| Financial Data Privacy | 100% In-Memory Client Execution (Zero Server Transit) | Logged on remote servers and ad networks |
| Calculation Latency | Instant real-time update on keystroke | Full page reloads or API round-trips |
| Offline Usability | Works offline once cached in browser | Fails without active server connection |
| Cost & Paywalls | 100% free with unlimited calculations | Usage caps or financial product paywalls |
PEG Ratio Formula
Divides the Price-to-Earnings multiple by the annual EPS percentage growth rate (where a 20% growth rate is entered as 20).
Core PEG Ratio Calculator Inputs & Terminology
A valuation metric that divides a stock's P/E ratio by its percentage earnings growth rate.
Price-to-Earnings multiple measuring how many dollars investors pay per dollar of annual earnings.
The annualized percentage rate at which EPS is projected to expand over a 3-5 year horizon.
The investment rule that a fairly priced stock should have a P/E ratio exactly equal to its growth rate (PEG = 1.0).
Frequently Asked Questions
Common questions about using our free PEG Ratio Calculator.