How much of the company is built on borrowed money? Enter total debt and shareholders' equity from the balance sheet to get the D/E ratio, the debt share of total capital, and a plain-English read on the leverage level.
Answer first: the debt-to-equity ratio divides what a company owes by what its owners have put in (and retained). This debt-to-equity calculator returns the D/E ratio plus two companion views of the same balance sheet — the percentage of capital funded by debt and the percentage funded by equity — and translates the result into a leverage category.
D/E = Total debt ÷ Shareholders' equity
Example: $600M of debt and $1,000M of equity → D/E = 0.60. Debt funds 600 ÷ 1,600 = 37.5% of total capital; equity funds the remaining 62.5%. For every dollar shareholders have at stake, lenders have sixty cents.
Leverage is the balance sheet's volume knob. A company financed mostly by equity moves with its business; a company financed mostly by debt amplifies everything — profits in good years, pain in bad ones — because interest is owed no matter what revenue does. D/E is the fastest way to see which kind of company you're looking at before any earnings ratio can flatter it.
Convention varies, and it changes the answer. The strict version uses interest-bearing debt only: short-term borrowings plus long-term debt (and, since accounting rules changed in 2019, usually lease liabilities too). The broad version uses total liabilities, sweeping in payables, deferred taxes and everything else a company owes — always a bigger number. Neither is wrong; they answer slightly different questions. Just never compare a strict-definition D/E for one company against a broad-definition D/E for another. This calculator accepts whichever figure you enter — be consistent.
There is no universal "good" D/E. Software firms often run near zero because they need little physical capital. Manufacturers, airlines and telecoms carry 1–2× as a matter of course, since factories and networks are debt-financed. Utilities run higher still against regulated, predictable cash flows — and banks are a category of their own, where high leverage is the business model and regulators, not rules of thumb, set the limits. The useful comparison is always against direct peers and against the company's own history: a D/E drifting from 0.5 to 2.0 over three years is a story that demands an explanation, whatever the industry.
Why do healthy companies borrow at all? Because when a business earns more on its assets than the interest it pays, the surplus flows to shareholders and lifts return on equity — the equity-multiplier term in DuPont analysis is exactly this effect. The same mechanism runs in reverse in a downturn: revenue falls, interest doesn't, and equity absorbs the whole shock. That's why value investors read D/E next to interest coverage and cash flow stability, not in isolation, and why a high-ROE company with a high D/E deserves extra skepticism.
Reality check: a single balance-sheet ratio can't capture debt maturities, interest rates, covenants or off-balance-sheet obligations, and definitions of "debt" differ between data providers. Educational calculator only, not financial advice. Pull the real numbers from company 10-K filings, free on the SEC's EDGAR at sec.gov.
Round out the picture with the ROE calculator (leverage inflates it), the price-to-book calculator (equity is its denominator too), what is leverage in trading? for the personal-account version, and fundamental analysis basics for the full framework.
Last updated July 2, 2026 · Written by Mustafa Bilgic. Educational only — not financial advice.
Divide total debt by total shareholders' equity, both from the balance sheet. $600 million of debt against $1 billion of equity gives a D/E of 0.6 — sixty cents of debt for every dollar of owners' capital. Some analysts use total liabilities instead of interest-bearing debt, which produces a higher figure, so always note which definition you are using.
It depends heavily on the industry. Below about 1.0 is conservative for most operating companies, 1.0–2.0 is common for capital-intensive businesses, and utilities and banks routinely run higher because of their business models. The red flag is a company whose D/E is far above its industry peers or climbing rapidly.
No — debt magnifies both outcomes. Cheap borrowed money can raise returns on shareholders' equity in good times, which is why some leverage is normal. The danger is that fixed interest payments do not shrink when revenue does, so the same leverage that boosts good years deepens bad ones.
Then the ratio has no meaning: liabilities exceed assets, often after years of losses or massive buybacks. Negative equity is not automatically fatal, but D/E cannot describe it — you would look at debt-to-EBITDA or interest coverage instead.