Earnings per share (EPS) is the single number most investors use to judge whether a company is making money, how profitable each share of stock actually is, and whether the current share price is reasonable. This EPS calculator takes the headline net income from an earnings report, removes preferred dividends, and divides the result by the share count to give you both basic EPS and diluted EPS. It then multiplies basic EPS by a P/E ratio to estimate what share price the market implies — so one quick screen turns a press-release number into a valuation anchor.
How to Use
- Enter Net Income — the company's bottom-line profit for the quarter or year as reported on the income statement. If the company posted a loss, type the figure as a negative number and EPS will correctly show as a loss per share.
- Set Preferred Dividends to the dividends declared to preferred shareholders during the same period. These must be subtracted before dividing, because preferred holders are paid before common holders. Put 0 if the company has no preferred stock.
- Type Basic Shares Outstanding — ideally the weighted-average common share count from the earnings release, not the end-of-period figure if shares were issued or bought back mid-period.
- Optionally enter Diluted Shares Outstanding, which adds dilutive securities such as stock options, warrants and convertible bonds. Diluted EPS is always equal to or lower than basic EPS.
- Optionally enter a P/E Ratio. Leave it blank if you only want the per-share earnings figure; set it to the company's current multiple (or a target multiple) to estimate an implied share price.
The result card shows the earnings available to common shareholders, basic EPS (highlighted), diluted EPS, the diluted share count, and — when a P/E is supplied — the implied share price.
The EPS Formula
Under GAAP (ASC 260), basic earnings per share is computed as:
Basic EPS = (Net Income − Preferred Dividends) ÷ Weighted-Average Common Shares Outstanding
The numerator, called earnings available to common, strips out any claim that sits ahead of common stockholders. The denominator uses a weighted-average share count rather than a single snapshot, because a company that issued shares halfway through the year did not have those shares outstanding for the full period.
Diluted EPS replaces the denominator with diluted shares — adding the shares that would be created if every option were exercised and every convertible security were converted. This is the most conservative figure and the one investors typically compare across companies.
Worked example on a company that earned $1,000,000,000, paid $0 in preferred dividends, and had 500,000,000 weighted-average shares: basic EPS is $2.00. On 520,000,000 diluted shares, diluted EPS falls to $1.92. At a 25× P/E, the implied share price is $2.00 × 25 = $50.00.
Basic vs Diluted EPS
Basic EPS only counts shares that actually exist. Diluted EPS counts every share that could exist if option holders and convertible bondholders chose to convert. For a cash-rich technology company with large employee stock-option grants, diluted share count can easily run 3–8% higher than basic, pulling diluted EPS meaningfully below basic. When the two figures diverge sharply, it usually signals heavy dilution — worth investigating before you pay a premium valuation.
Why EPS Matters for Valuation
EPS is the "E" in the P/E ratio. If a stock trades at $50 and earns $2.00 per share, the P/E is 25. Reverse the math and EPS × P/E tells you what price the market is paying for current earnings. Comparing a company's implied price to its actual market price — or comparing its P/E to peers — is the fastest way to spot whether a stock looks cheap or expensive relative to how much it earns per share.
Examples
Example 1 — The textbook case. A large-cap company reports net income of $1,000,000,000, no preferred dividends, 500,000,000 basic shares and 520,000,000 diluted shares. Basic EPS = $1.0B ÷ 500M = $2.00; diluted EPS = $1.0B ÷ 520M = $1.92. At a 25× P/E the implied share price is $50.00.
Example 2 — A loss-making company. A startup posts a net loss of $200,000,000 across 400,000,000 shares. Basic EPS is −$0.50 — a loss per share, not a profit. The calculator preserves the negative sign so you can see that each share currently represents a loss rather than earnings. A P/E ratio on a negative EPS is not meaningful, which is why loss-making growth companies are usually valued on revenue multiples instead.
Example 3 — A mega-cap with preferred stock. A company earns $50,000,000,000 but pays $1,000,000,000 in preferred dividends, across 2,000,000,000 basic shares and 2,100,000,000 diluted shares. Earnings available to common = $49B; basic EPS = $24.50; diluted EPS = $23.33. At a 30× P/E the implied price is $735.00.
FAQ
How do I calculate earnings per share (EPS)?
Subtract preferred dividends from net income, then divide by the weighted-average number of common shares outstanding: EPS = (Net Income − Preferred Dividends) ÷ Weighted-Average Common Shares. For example, $1,000,000,000 in earnings over 500,000,000 shares gives $2.00 per share.
What is the difference between basic and diluted EPS?
Basic EPS divides earnings by the shares that currently exist. Diluted EPS divides earnings by the larger "fully diluted" share count that adds options, warrants and convertible securities. Diluted EPS is always equal to or lower than basic EPS and is the figure analysts focus on.
How does EPS relate to the P/E ratio and share price?
The P/E ratio is the share price divided by EPS. Rearranged, share price = EPS × P/E. If a company earns $2.00 per share and the market assigns a 25× multiple, the implied price is $50.00. This is why a higher EPS — or a higher P/E — translates directly into a higher valuation.
Why do we subtract preferred dividends from net income?
Preferred shareholders are owed a fixed dividend before common shareholders receive anything. Because EPS measures earnings available to common stock, those preferred dividends must be removed from the numerator. If the company has no preferred stock, the figure is simply 0.
What does a negative EPS mean?
A negative EPS means the company ran a net loss during the period — earnings available to common were below zero. It is common for young or growth companies. A negative EPS divided by a price does not produce a meaningful P/E, so such firms are usually valued on sales or cash-flow metrics instead.
Should I use weighted-average or end-of-period shares?
GAAP requires the weighted-average share count for reported EPS, because it reflects how many shares were actually outstanding for each portion of the period. Using a simple end-of-period snapshot can overstate or understate EPS when shares were issued or repurchased mid-year. For accuracy, use the weighted-average figure from the earnings release.
Disclaimer
This EPS calculator is provided for informational purposes only and does not constitute investment, financial, accounting, or tax advice. Results are estimates based on the inputs you enter and the standard EPS formula; reported figures may differ because companies use adjusted (non-GAAP) earnings, buybacks, and complex dilutive-security calculations. Past earnings do not guarantee future results. Always verify EPS directly against a company's official earnings release and consult a qualified financial professional before making any investment decision.