WORKED DEFAULT
Check the calculation with the default inputs
A P/E ratio of 18 divided by expected annual EPS growth of 12 percentage points gives a PEG ratio of 1.5.
- Enter P/E18.0x
- Enter growth percentage12% means 12
- Divide18 / 12 = 1.50
RELATIVE VALUATION / EXPECTED GROWTH
Normalize a price-to-earnings multiple by an explicitly entered growth percentage.
METHOD / WORKED EXAMPLE
PEG places a P/E multiple beside an expected earnings-growth estimate, but the number is meaningful only when users know which earnings, horizon, and percentage convention were used.
WORKED DEFAULT
A P/E ratio of 18 divided by expected annual EPS growth of 12 percentage points gives a PEG ratio of 1.5.
READ THE RESULT
Do not read 1.5 as an automatic verdict. Compare forecast quality, risk, reinvestment, payout, cyclicality, and consistent earnings definitions.
ASSUMPTIONS AND LIMITS
The tool does not validate analyst forecasts or imply that a particular PEG level is fairly valued.
COMMON QUESTIONS
The common PEG convention divides the P/E multiple by the numerical percentage growth rate, so twelve percent is entered as 12. Using 0.12 would make the result one hundred times larger. This convention is different from formulas that use growth as a decimal. Always inspect the displayed input suffix and formula before comparing outputs.
The calculator can show the arithmetic for negative growth, but conventional positive-growth interpretation generally breaks down. A negative PEG can arise from negative growth, negative earnings, or both, and those cases are not ordered like ordinary positive multiples. Examine earnings quality, cyclicality, forecasts, balance-sheet risk, and an alternative valuation framework rather than relying on the sign.
Use a forecast whose earnings definition matches the P/E numerator, and record its source, horizon, currency, and treatment of unusual items. Near-term growth can be distorted by a depressed base; long-term consensus estimates can be uncertain. Test more than one defensible scenario and avoid comparing companies when forecast conventions or analyst coverage differ materially.
RELATED TOOLS
Use boundary
Divide the entered P/E multiple by the expected annual EPS growth rate expressed as percentage points.
PEG = P/E ratio / expected annual EPS growth percentage.