EPS Growth Calculator
EPS growth measures how fast a company’s earnings per share are compounding, and it comes in two related forms. Total growth is the plain percentage change from the starting EPS to the ending EPS. CAGR, the compound annual growth rate, is the smoothed yearly rate that would carry EPS from the start value to the end value over the period. This calculator computes both, projects next year’s EPS at a forward growth rate you choose, estimates how long EPS takes to double with the Rule of 72, and shows its working step by step. It also handles the awkward cases honestly: when starting EPS is zero or negative, a compound rate is not meaningful, and the calculator says so instead of printing a nonsense number.
Quick Answer
For the pre-filled example, EPS rising from $2.00 to $3.22 over 5 years, total growth is +61.00% and the compound annual growth rate is 9.99% per year, inside the healthy 5% to 15% band this calculator uses. At a 10% assumed forward rate, next year’s EPS projects to $3.54, and at the 9.99% compound pace EPS doubles in about 7.2 years by the Rule of 72.
Key takeaways
- Total growth and CAGR answer different questions: total growth says how much bigger EPS became, CAGR says how fast it compounded per year, which is the figure that makes different periods comparable.
- CAGR needs a positive starting EPS. From a zero or negative base the calculator reports total change with a plain-language note instead of inventing a compound rate.
- EPS can grow because the share count shrank, not because earnings grew. Check net income and revenue growth alongside any EPS growth figure before calling a business a grower.
- The doubling time here is a Rule of 72 estimate, not an exact logarithm. At 9.99% it gives 7.2 years where the exact figure is about 7.3 years.
- Quick Answer
- How to use the EPS growth calculator
- The two formulas, stated exactly as this tool computes them
- Worked example: $2.00 to $3.22 over five years
- What high EPS growth can hide
- When CAGR breaks, and limits of this calculator
- Frequently asked questions
- Add This Calculator to Your Website
- References
How to use the EPS growth calculator
Enter the two EPS figures and the years between them, then click Calculate Growth. The results stay hidden until you do, so you can line up several companies or periods and run them one at a time.
- Starting EPS: earnings per share at the beginning of the period, taken from the annual report or a data provider. Use diluted EPS where you can, because it counts the shares that options and convertibles could add.
- Ending EPS: earnings per share at the end of the period, on exactly the same basis as the starting figure.
- Years between: the count of one-year steps between the two figures. Comparing the 2020 and 2025 annual reports is 5 years, not 6.
- Assumed forward growth (optional): a rate of your own for the one-year projection. It does not change the CAGR. Try a rate below the historical CAGR as a stress test, because past compounding rarely continues unchanged.
One consistency rule matters more than any other: never mix EPS types. Comparing basic EPS at the start with diluted EPS at the end manufactures growth or decline that never happened. The gap between the two measures is exactly what the diluted loss per share calculator works through for loss-making companies, where dilution is ignored by accounting rules and the two figures coincide.
The two formulas, stated exactly as this tool computes them
Total growth divides the change in EPS by the absolute value of the starting EPS. CAGR raises the end-to-start ratio to the power of one over the years, then subtracts one. Both are shown here in the same form the calculator’s step breakdown uses.
CAGR = (Ending EPS ÷ Starting EPS)1 ÷ years − 1
Next-year projection = Ending EPS × (1 + forward rate ÷ 100)
Years to double = 72 ÷ CAGR (Rule of 72 approximation)
The absolute value in the total growth formula is a deliberate convention of this tool. From a starting EPS of −$1.00 to an ending EPS of $2.00, the change is +$3.00 on a $1.00 base, and the calculator reports +300.00%. Some textbooks divide by the signed starting value instead and would report −300% for the same turnaround, which reads as a decline. Neither convention rescues CAGR in that case: the ratio is negative, its fractional root is not a real number, and no honest compound rate exists. That is why the calculator pairs the total figure with a note and leaves CAGR as not meaningful.
Worked example: $2.00 to $3.22 over five years
Take a company whose diluted EPS was $2.00 five years ago and is $3.22 in the latest annual report. The calculator’s own step breakdown runs: ratio 3.22 / 2.00 = 1.6100, annualized as 1.61001/5 − 1, giving a CAGR of 9.99%. Total growth is (3.22 − 2.00) / 2.00 = +61.00%. The smoothed path below shows what steady 9.99% compounding looks like year by year; real EPS almost never follows it this neatly, which is precisely the point of a compound rate: it irons out the bumps into one comparable number.
Small changes in the ending value move the verdict band quickly. Holding the start at $2.00 and the period at five years:
| Ending EPS | Total growth | CAGR | Band this calculator reports |
|---|---|---|---|
| $2.50 | +25.00% | 4.56% | Slow growth: below 5% |
| $3.00 | +50.00% | 8.45% | Healthy growth: 5% to 15% range |
| $3.22 | +61.00% | 9.99% | Healthy growth: 5% to 15% range |
| $4.00 | +100.00% | 14.87% | Healthy growth: 5% to 15% range |
| $4.50 | +125.00% | 17.61% | High growth: 15%+ annual compounding |
These bands are this calculator’s own guide rails, coded into its verdict line: 15% and above is high, 5% to 15% is healthy, 0% to 5% is slow, and anything below zero is declining. They are rules of thumb, not laws. A regulated utility compounding at 4% may be performing exactly as its investors expect, while a young software firm at 12% may be decelerating hard. The same CAGR mathematics applies to any starting and ending value, and the CAGR return calculator applies it to investment values rather than per-share earnings.
What high EPS growth can hide
EPS is earnings divided by share count, so it has two moving parts, and only one of them is the business. Suppose net income is completely flat at $100 million for five years while buybacks cut the share count from 50 million to 40 million. EPS rises from $2.00 to $2.50, a total growth of +25.00%, with zero growth in actual earnings. The calculator will faithfully report that 25%, because arithmetically it is real; whether it represents a growing business is a question the number alone cannot answer.
Three checks separate genuine growth from financial engineering. First, compare EPS growth with net income growth over the same period: a wide gap points at the share count. Second, compare it with revenue growth: earnings growing much faster than sales usually means margin expansion or cost cuts, which have natural limits. Third, look for one-off items in the start or end year, such as asset sales, tax credits or restructuring charges, because CAGR is acutely sensitive to its two endpoints. A depressed starting year flatters the whole period. For market-level context, index earnings compound far more slowly than star stocks: the long-run figures behind the S&P 500 returns calculator are a useful anchor when a 20% EPS CAGR starts to look normal. Growth in the value of the owners’ stake is a related but different question, covered by the equity growth calculator.
When CAGR breaks, and limits of this calculator
CAGR breaks in three situations, and the calculator handles each one explicitly. If starting EPS is negative and ending EPS is positive, the company has turned around, but the end-to-start ratio is negative and no real compound rate exists; the calculator shows total growth on the absolute-value convention and a note explaining the situation. If starting EPS is zero, both formulas divide by zero: the calculator reports total growth as not meaningful rather than the infinity or NaN a spreadsheet would produce, and again shows the note. If ending EPS is negative while starting EPS is positive, total growth still computes (from $2.00 to −$0.50 it is −125.00%), but CAGR is withheld, because a compound path into negative earnings is not a meaningful rate.
Beyond those cases, know what the tool is not doing. It reads only the two endpoints, so it cannot see a collapse and recovery in the middle years. It does not adjust for stock splits, and a 2-for-1 split between your two EPS figures will halve the ending EPS and fake a decline unless you restate one of the figures, as data providers do. It does not separate reported GAAP EPS from adjusted EPS, which can differ materially in years with large one-off items. And its projection is a single year at a single rate you supply: a scenario sketch, not a forecast, and certainly not the multi-year analyst modelling a valuation would need.
Frequently asked questions
As the rough guide coded into this calculator: above 15% a year is high growth, 5% to 15% is healthy, below 5% is slow, and a negative rate means EPS is shrinking. Context matters, though. Mature utilities rarely exceed single digits, while young technology firms can post 20% or more for years. Always compare a company against its own history and its sector peers rather than against the bands alone.
Total EPS growth is the percentage change across the whole period: from $2.00 to $3.22 it is +61.00%. CAGR annualizes that change into the constant yearly rate that produces the same result, here 9.99% per year over five years. Total growth answers how much bigger EPS became; CAGR answers how fast it compounded, which is what makes a three-year period comparable with a ten-year one.
Because CAGR takes a fractional root of the ending-to-starting ratio, and that is only a real number when starting EPS is positive and ending EPS is not negative. With a zero or negative starting EPS, or a negative ending EPS, no honest compound rate exists. The calculator then shows total growth, on the absolute-value convention described on this page, and a note explaining which case you are in.
Through the share count. EPS is net income divided by shares outstanding, so buybacks that shrink the share count raise EPS even when total earnings do not move. Flat earnings of $100 million on 50 million shares give EPS of $2.00; the same earnings on 40 million shares give $2.50, a 25% EPS increase with zero business growth. Compare EPS growth with net income and revenue growth to see which part moved.
Use diluted EPS, and use it at both ends of the period. Diluted EPS counts the shares that stock options, warrants and convertible securities could add, so it is the conservative figure most analysts quote. The one requirement that matters most is consistency: basic at one end and diluted at the other invents growth or decline that never happened.
Yes, one year ahead, at a forward rate you choose. Enter the rate in the optional forward growth field and the calculator multiplies the ending EPS by one plus that rate, so $3.22 at 10% projects to $3.54. Leaving the field blank, or entering a rate of −100% or lower, skips the projection. Treat the result as a scenario to test, not a forecast: past compounding rarely continues unchanged.
No. EPS measures earnings attributable to each share, not the total return a shareholder receives. A company paying large dividends can show modest EPS growth while delivering strong total returns once the cash payouts are counted, and a company retaining everything can show fast EPS growth with a lagging share price. EPS growth and dividend returns are separate parts of the investment picture.
It is a Rule of 72 estimate: 72 divided by the CAGR. At the worked example’s 9.99% CAGR it gives 7.2 years, while the exact logarithmic answer is about 7.3 years. The rule is close enough for a sanity check across most growth rates, but it is an approximation, and the calculator only shows it when the CAGR is positive, since a flat or shrinking EPS never doubles.
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References
- Omni Calculator. Earnings Per Share (EPS) Growth Calculator, with the CAGR formula and a worked Apple 2011 to 2020 series. Accessed October 21, 2026.
- OnlyCalculators. Earnings Per Share Growth Calculator: CAGR, projections and growth bands. Accessed October 21, 2026.
- Akyno Calculator. Earnings Per Share Growth Calculator, with total growth and CAGR steps and input consistency guidance. Accessed October 21, 2026.
- iDiTect. EPS Growth tool and formula notes, including the EPS definition from net income less preferred dividends. Accessed October 21, 2026.
- Calculator Ultra. EPS Growth Calculator and single-period growth formula. Accessed October 21, 2026.