FFirmLensGLOBAL
Companies/Calculators
CALCULATORS

Eight calculators for reading financial statements

Margin, CAGR, DuPont ROE, cash conversion cycle, break-even, EV multiples, WACC and DCF — each with where the inputs sit in a filing and what the result leaves out.

Why calculators

The filings themselves are already free. Anyone can pull the originals from SEC EDGAR or, for Korean companies, from OpenDART at the Financial Supervisory Service — and the figures on this site's company pages came from exactly there. Showing the same numbers again adds nothing.

What the originals do not do is the arithmetic. A statement gives amounts; the ratios between them have to be worked out, and whether a ratio is ordinary can only be answered by comparing it with other companies. These eight calculators do both: they compute the ratio from figures you take out of a filing, and where the result is a ratio they place it in the distribution of the fifty listed companies collected here.

Each page says, for every input, which line of which statement to take it from — that cost of revenue is the line directly under revenue and excludes selling and admin costs, for instance. And each says what its measure cannot tell you: how EBITDA hides capital spending, how a CAGR erases the path it took, how most of a DCF comes from the terminal assumption rather than from anyone's forecast.

PROFITABILITY

How much of a sale survives, and where the profit is made. These are the first figures worth computing when a statement is opened.

Profit margin calculator

Enter the income statement lines and get all three margins, placed against the fifty companies collected here.

Operating income / revenue × 100DuPont ROE calculator

Splits return on equity into margin, asset turnover and leverage, so two companies with the same ROE stop looking alike.

Net income / equity × 100Break-even and operating leverage calculator

Break-even volume from fixed costs and unit contribution, plus how far current volume sits above it and how sharply profit swings.

Fixed costs / contribution per unit
GROWTH

Several years turned into one rate, so the figures compare. Miscount the years and the answer is quietly wrong.

CAGR calculator

Two amounts and the years between them give the compound annual rate, the total change and the time to double.

(End / start)^(1 / years) − 1
CASH & WORKING CAPITAL

Why a profitable company can be short of cash. Not visible on the income statement alone — it needs the balance sheet beside it.

Cash conversion cycle calculator

Turns receivables, inventory and payables into days, and gives the stretch of time cash is out of the business.

DSO + DIO − DPO
VALUATION

What a company costs and what that money demands in return. Unlike the three groups above, these rest on estimates — read the output as a range, not a figure.

Enterprise value and EV/EBITDA calculator

Market cap plus net debt gives enterprise value, then the multiples off it — so a leveraged company and a debt-free one compare on the same basis.

Market cap + net debtWACC calculator

Cost of equity from CAPM and after-tax cost of debt, weighted by capital structure, with the interest tax shield shown as its own step.

E/V × cost of equity + D/V × after-tax cost of debtDCF calculator

Projects the forecast years and the perpetuity separately, and says what share of the answer rests on the terminal assumption.

Forecast present value + discounted terminal value

Common questions

What unit should the amounts be in?

Any unit, as long as it is the same one throughout. Enter millions of dollars and the answers come back in millions of dollars. Ratios carry no unit at all. This site never converts currencies, so mixing won and dollars inside one calculation gives a wrong answer.

Is anything I type stored?

No. Every calculation runs in your browser and nothing is sent to a server. Reloading the page returns it to the example figures.

What does the percentile against 50 companies mean?

It is the share of the fifty listed companies collected here — from SEC EDGAR and OpenDART — whose figure is at or below yours. Ratios carry no currency, so Korean and US filers sit in one distribution with nothing converted. The set mixes industries, so read it as "is this ordinary" rather than "is this good".

Can I use these results to make an investment decision?

These are educational tools for reading filings. The formulas are tested, but the accuracy of the inputs and the reading of the output are yours, and none of it is advice about a particular security. A real decision needs the statements and their notes.

Go to the reading guides →

8 calculators, every formula covered by tests. These are educational tools and not advice about any security.