Fundamentals
P/E Ratio Calculator
Calculate the price-to-earnings ratio from market price and earnings per share.
Global calculator · Select the currency used for your inputs. No exchange-rate conversion is applied.
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Your results
P/E Ratio Calculator formula
The price-to-earnings ratio divides market price per share by earnings per share. Both values must cover a compatible share basis and earnings period.
How to interpret the result
P/E is a valuation comparison, not a standalone buy signal. Differences in growth, accounting, cyclicality and risk can justify different ratios.
Worked example
A share price of 100 and EPS of 5 produce a P/E ratio of 20.
How to use this calculator
- Enter values from the same transaction or scenario.
- Confirm that quantities, dates, rates and currency match the labels.
- Review the result and change one assumption at a time when comparing scenarios.
Common mistakes
- Mixing trailing price with unrelated forecast EPS.
- Using P/E when earnings are negative or not meaningful.
- Comparing companies with very different business economics.
Limitations
The ratio does not capture debt, cash flow quality, growth durability or one-off accounting effects.
Authoritative references
This calculator is for general education and estimation only. It is not financial, tax, accounting, or investment advice.
Questions to check before relying on the result
What does this calculator include?
Calculate the price-to-earnings ratio from market price and earnings per share.
Which assumptions should I verify?
Check every entered amount, rate, date and charge against the transaction, official source or provider document relevant to you.
What can make the actual outcome different?
The ratio does not capture debt, cash flow quality, growth durability or one-off accounting effects.
Does the selected currency convert my values?
No. Currency selection changes formatting only; it does not fetch or apply an exchange rate.