Price-to-Earnings to Growth (PEG & PEGY Ratio

Growth at a Reasonable Price (GARP): Peter Lynch's PEG Ratio

Made famous by legendary Fidelity Magellan fund manager Peter Lynch in One Up on Wall Street:

• Why P/E Alone is Misleading: A P/E of 30x sounds expensive, but if the company is growing earnings at 40% annually, it is actually a bargain compared to a stagnant utility with a P/E of 15x growing at 3%.

• The PEG = 1.0 Rule: Lynch stated that a company's fair P/E multiple is equal to its percentage growth rate.

How to Use This Calculator

Enter Current Stock Market Price, Trailing Diluted Earnings Per Share (TTM EPS in $), Forward 12-Month Estimated EPS, Expected Annual Earnings Growth Rate (EPS CAGR %) into the input fields and the calculator will instantly compute Standard PEG Ratio Multiplier, Dividend-Adjusted PEGY Ratio (Peter Lynch). All calculations happen in real time — no submission or page reload required. You can adjust any input value and see the result update immediately.

Understanding Your Result

The Price-to-Earnings to Growth (PEG & PEGY Ratio) result gives you a precise, calculated value based on the inputs you provide. Compare your result against published benchmarks from NIST, BIPM, and ISO 80000 to assess where you stand. A single calculation is a useful starting point, but tracking this metric over time — as inputs change — gives you a much more complete picture.

Practical Application

The Price-to-Earnings to Growth (PEG & PEGY Ratio) is most useful when you have specific, real-world data to enter. For example: enter your actual Current Stock Market Price to calculate your standard peg ratio multiplier. The result helps engineers, scientists, students, and international traders make informed decisions about converting between measurement units for science, engineering, and commerce. This calculator is trusted by professionals and individuals alike because it follows the exact formulas validated by NIST, BIPM, and ISO

80000.

Accuracy Notes and Limitations

For legal or trade filings, verify conversions against official government or standards body references. The accuracy of any calculator is limited by the quality of the inputs provided. Double-check your units before entering values — unit errors are the most common source of incorrect results. For critical decisions, cross-reference with at least one additional source or professional consultation.

Frequently Used With

This calculator is often used alongside other conversion tools to build a complete analytical picture. Combining multiple related calculations provides stronger evidence for decisions than relying on any single metric. Browse the Conversion category to find complementary calculators for your specific use case.