EV/EBITDA vs P/E: Which Valuation Multiple Should You Trust?

P/E (Price to Earnings) is the most commonly cited valuation multiple, but it has a significant blind spot: it completely ignores debt. EV/EBITDA fixes this by valuing the whole business, not just the equity portion.

What P/E leaves out

P/E compares a company's share price to its earnings per share — but earnings are calculated after interest payments on debt are already subtracted. Two companies with identical operating performance but very different debt loads can show very different P/E ratios, purely because of how much interest expense each pays — not because their underlying businesses differ in quality.

What EV/EBITDA measures instead

Enterprise Value (EV) = Market Cap + Total Debt − Cash. This represents the theoretical full cost to acquire the entire company, debt included, since a buyer would need to pay off existing debt as part of any acquisition. EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) strips out the effects of financing and accounting choices, focusing purely on operating performance.

Comparing EV to EBITDA gives a valuation multiple that's comparable across companies with very different capital structures — a heavily indebted company and a debt-free one become directly comparable in a way P/E can't achieve.

A scenario where this matters

Two companies generate identical operating profit. Company A has no debt; Company B is heavily leveraged and pays substantial interest expense, reducing its net earnings and inflating its P/E ratio relative to Company A — even though their underlying businesses perform identically. EV/EBITDA would correctly show both companies trading at similar multiples, revealing that the P/E difference was purely a financing artifact, not a reflection of business quality.

When P/E is still useful

P/E remains simple, widely available, and intuitive, and works reasonably well for comparing similarly-capitalized companies within the same industry. It's a fine quick screening tool — the key is knowing its blind spot and reaching for EV/EBITDA specifically when comparing companies with meaningfully different debt levels.

Industry matters for interpreting either multiple

Capital-intensive industries (utilities, telecom) typically trade at different baseline EV/EBITDA multiples than asset-light industries (software, services) — always compare multiples within the same industry, never across unrelated sectors.

Calculate both

The free EV/EBITDA Calculator computes enterprise value and the implied share price at a peer multiple. For a growth-adjusted comparison instead, the PEG Ratio Calculator factors earnings growth into the picture.

A scenario where the two metrics tell different stories

Consider two companies, both trading at a P/E of 15 — identical by that measure. Company A has no debt. Company B has $500 million in debt against the same market cap and earnings.

On P/E alone, they look equally 'cheap.' But enterprise value (market cap + debt - cash) tells a different story: Company B's EV/EBITDA multiple comes out noticeably higher than Company A's, because its enterprise value includes that extra $500 million in debt that P/E completely ignores.

In practice, this means an acquirer buying Company B outright would effectively be paying more relative to its cash-generating ability than P/E alone suggests — since they'd be taking on that debt too. This is exactly the scenario EV/EBITDA is built to catch and P/E is structurally blind to.

Where these multiples get misapplied

A common mistake is comparing EV/EBITDA or P/E multiples across companies in very different industries — a software company and a utility company have structurally different growth rates, capital needs, and risk profiles, so a 'lower' multiple in one industry doesn't mean the same thing as a lower multiple in another.

Another frequent error is treating EBITDA as if it were equivalent to actual cash flow — EBITDA excludes real cash costs like capital expenditures and changes in working capital, so a company with high EBITDA but heavy ongoing capital spending needs can look healthier on this metric than its actual cash position supports.

A practical comparison approach

When comparing companies, always check debt levels first — if the companies you're comparing have meaningfully different debt loads, lean on EV/EBITDA rather than P/E, since P/E's blindness to debt will otherwise distort the comparison.

Compare multiples only within the same industry or sector — a 'low' multiple in one industry can be a 'high' multiple in another given different typical growth rates and capital requirements, so cross-industry multiple comparisons need much more context than a bare number provides.

Why using both metrics together beats picking one

Rather than treating EV/EBITDA and P/E as competing metrics where one must be chosen, using both together often reveals more than either alone — a company looking cheap on P/E but expensive on EV/EBITDA is signaling meaningful debt that a debt-blind investor using P/E alone would miss entirely.

This combined approach is standard practice among professional analysts specifically because no single valuation multiple captures every relevant dimension of a company's financial position on its own.