An EBITDA calculator strips four things out of profit — interest, tax, depreciation and amortisation — to leave a figure that describes how the operating business performs before financing structure, tax position and past capital spending get involved. It is the number buyers quote when valuing a company, the number lenders test covenants against, and the number that makes two otherwise incomparable businesses comparable.
Arb Digital publishes this in the free tool library at arbsbuy.com for owners who need the figure without building a spreadsheet. It differs from the live net profit margin calculator in where it starts: that tool works from net income, after interest and tax have already been deducted. This one builds up from revenue to operating earnings and then adds the non-cash charges back, so you see every step and can check the answer two ways.
What This EBITDA Calculator Does
Enter revenue, cost of goods sold and operating expenses, and the calculator derives gross profit and operating income. Enter depreciation and amortisation separately and it adds them back to produce EBITDA. Enter interest and tax and it carries the same figures down to net income, so the full income statement is visible in one place.
The four bars show gross margin, EBITDA margin, EBIT margin and net margin against the same revenue, which is the fastest way to see where the money goes. A wide gap between gross margin and EBITDA margin means overheads are heavy. A wide gap between EBITDA margin and EBIT margin means the business is capital-intensive. A wide gap between EBIT and net margin means debt or tax is taking a large share.
The hero subtitle performs a cross-check. EBITDA calculated top-down from revenue must equal net income plus interest plus tax plus depreciation and amortisation. If those two routes disagree, one of your inputs is double-counted, and the tool tells you rather than quietly reporting a number.
How to Use It
- Take every figure from the same period. A twelve-month revenue against a quarter's costs produces a margin that means nothing.
- Enter cost lines excluding depreciation. Many income statements bury some depreciation inside cost of goods sold; strip it out first so the add-back does not double count.
- Get depreciation and amortisation from the cash flow statement. It lists them explicitly as non-cash add-backs, which is usually cleaner than digging through the notes.
- Add interest and tax to complete the picture down to net income and to enable the cross-check.
- Read the margin, not just the amount. An EBITDA of 440,000 means different things at 2.4 million of revenue and at 24 million.
The Formula / How It's Calculated
There are two routes to the same number. Building up: EBITDA = revenue − COGS − operating expenses, with depreciation and amortisation excluded from those cost lines. Working down from the bottom: EBITDA = net income + interest + tax + depreciation + amortisation.
Run the defaults. Revenue of 2,400,000 less cost of goods sold of 1,320,000 gives gross profit of 1,080,000, a gross margin of 45.0 percent. Subtract operating expenses of 640,000, depreciation of 120,000 and amortisation of 40,000, and operating income — EBIT — is 280,000. Add the 160,000 of depreciation and amortisation back and EBITDA is 440,000.
Now check it from the other end. EBIT of 280,000 less interest of 55,000 and tax of 60,000 gives net income of 165,000. Add back interest 55,000, tax 60,000 and D&A 160,000: 165,000 + 275,000 = 440,000. The two routes agree, which is the point of running both. The margins follow directly: EBITDA margin is 440,000 ÷ 2,400,000 = 18.33 percent, EBIT margin is 11.67 percent, and net margin is 6.88 percent.
Why Each of the Four Items Comes Out
The four exclusions are not arbitrary. Each removes a difference between businesses that has nothing to do with how well the operation itself runs.
Interest comes out because it reflects the capital structure chosen by the owners rather than the performance of the business. Two identical companies, one debt-funded and one equity-funded, produce identical operations and very different net income. A buyer replacing the financing on acquisition wants the figure that survives that change.
Tax comes out because it depends on jurisdiction, group structure, historic losses and elections — none of which describe the trading business. Depreciation and amortisation come out because they are non-cash allocations of money spent in earlier periods, and because the method and useful life used are estimates, as the depreciation calculator shows: the same asset can produce very different annual charges under straight-line or double-declining balance. Amortisation is often more distorting still, because acquisitive companies carry large intangible write-offs from purchase accounting that organically grown competitors simply do not have.
What EBITDA Deliberately Hides
The same exclusions that make EBITDA comparable also make it incomplete, and the criticisms are worth taking seriously rather than dismissing.
Excluding depreciation is defensible as a comparability adjustment and indefensible as a claim that capital spending is free. A haulage business, a manufacturer or a hotel group has to replace assets continually; the depreciation charge is a rough proxy for the cash that replacement will consume. Judging such a business on EBITDA alone treats a genuine recurring cost as if it did not exist, which is why the number should always be read alongside capital expenditure — the pairing the free cash flow calculator makes explicit.
EBITDA is also silent on working capital. A company can grow EBITDA strongly while consuming cash, because inventory and receivables are absorbing more than the profit generates. And because EBITDA is not defined under generally accepted accounting principles, its composition is a matter of presentation rather than rule. The Securities and Exchange Commission's staff interpretations, published in its consolidated Compliance and Disclosure Interpretations, set out how non-GAAP measures such as EBITDA must be presented and reconciled by registrants precisely because the definition is elastic.
Adjusted EBITDA and the Adjustments Worth Questioning
Almost every transaction quotes adjusted EBITDA rather than EBITDA, which adds back items the seller considers unrepresentative. Some of those adjustments are entirely legitimate. A genuine one-off legal settlement, the cost of a fire, or an owner's salary being replaced by a market-rate manager are all real normalisations, and the last is standard in owner-managed business sales.
Others deserve scrutiny. Restructuring costs added back every year for five consecutive years are not one-off; they are the cost of running that business. Adding back stock-based compensation treats a real cost of employing people as if it were free. Adding back "growth investment" that is indistinguishable from ordinary marketing converts operating spend into a favour to the seller.
The practical test is repeatability: if the item is likely to recur, it belongs in EBITDA regardless of what it is called. Because valuations are usually struck as a multiple, the stakes are large — at a multiple of six, one currency unit of accepted add-back adds six to the price. That is also why the multiple and the underlying cash flows should be sanity-checked separately, using the DCF calculator and the WACC calculator rather than relying on a single headline figure.
Reading the Gaps Between the Four Margins
The most useful thing on this page is not any single number but the distance between the four bars, because each gap identifies a different characteristic of the business.
Gross margin to EBITDA margin is the overhead gap. In the default figures that is 45.0 percent down to 18.33 percent, so overheads consume roughly 27 points of revenue. A widening gap over time means costs are growing faster than sales, which is a scale problem rather than a pricing one.
EBITDA margin to EBIT margin is the capital intensity gap — 18.33 down to 11.67, or 6.7 points of revenue going to depreciation and amortisation. A software business might show almost no gap here; a plant-heavy manufacturer might show fifteen points. EBIT margin to net margin, 11.67 down to 6.88, is the financing and tax gap, and a large one signals significant leverage. Tracking all three gaps over several periods tells you far more than tracking EBITDA alone, and pairing them with the profit margin calculator and the COGS calculator shows which line is actually moving.
Getting the Inputs Right Before You Trust the Output
An EBITDA figure is only as good as the income statement behind it, and small businesses frequently produce one that is not ready to be read this way. Two problems recur.
The first is the accounting basis. On a cash basis, revenue lands when the customer pays and costs land when you pay the supplier, so a period can show strong earnings simply because a large invoice was collected inside it. On an accrual basis, both are recognised when they are earned or incurred, which is what makes a margin comparable between periods. The Small Business Administration's guidance on how to manage your business finances covers the choice and why it matters for exactly this kind of analysis. EBITDA computed from cash-basis figures is not wrong arithmetically, but it is measuring something different from what a buyer or lender expects.
The second is owner compensation in an owner-managed company. If a proprietor takes a salary far below or far above what a hired manager would cost, EBITDA is distorted by the difference and comparisons with other businesses break down. The standard fix is to normalise the salary to a market rate before calculating, which is a legitimate adjustment rather than a favour to the seller — but it should be documented and defensible, not simply assumed. Run the figure both ways here and note the gap; on a valuation struck as a multiple, that gap is multiplied.
Arb Digital builds long-term online growth programmes for established businesses, so the operating leverage in your cost base has more revenue running through it.
Web Growth Services Talk to Arb DigitalCommon Mistakes to Avoid
- Double counting depreciation — if it is already inside cost of goods sold, adding it back again overstates EBITDA by that amount.
- Treating EBITDA as cash flow — it ignores working capital movements and capital expenditure, both of which consume real cash.
- Accepting every adjustment — an add-back that recurs annually is an operating cost, whatever the schedule calls it.
- Comparing EBITDA across industries — an eighteen percent margin is strong in distribution and weak in software, so the benchmark has to be sector-specific.
- Mixing periods — every input must cover the same window, or the margins are meaningless.
Related Free Tools From Arb Digital
Pair this with the free cash flow calculator for the cash view EBITDA omits, the depreciation calculator for the charge being added back, the net profit margin calculator for the bottom line, the COGS calculator for the gross margin input, the P/E ratio calculator for the equity multiple, and the burn rate calculator when earnings are negative. The full free online tools hub lists everything else.
Frequently Asked Questions
Revenue minus cost of goods sold minus operating expenses, with depreciation and amortisation excluded from those cost lines. Equivalently, net income plus interest, tax, depreciation and amortisation. Both routes must give the same answer.
EBIT is operating income after depreciation and amortisation have been charged. EBITDA adds those two non-cash items back. The gap between them measures how capital-intensive the business is.
No. EBITDA ignores changes in working capital and ignores capital expenditure entirely, so a business can report rising EBITDA while consuming cash. Free cash flow is the measure that accounts for both.
It depends entirely on the sector. Software and subscription businesses commonly run far above distribution or contract manufacturing, so the only meaningful comparisons are against similar businesses and against your own prior periods.
Because interest reflects how the business is financed rather than how it operates. Two identical companies with different debt levels produce different net income, and excluding interest lets a buyer compare the operations before deciding on a capital structure.
EBITDA with further add-backs for items the preparer considers unrepresentative, such as genuine one-off costs or an owner's above-market salary. The test worth applying is repeatability: anything likely to recur belongs in the figure.
No. It is a non-GAAP measure, meaning its composition is not fixed by accounting standards. That is why regulators require registrants to reconcile it to the nearest standardised measure when it is presented publicly.
This calculator performs arithmetic on figures you supply and is provided for general information only. It is not accounting, investment or valuation advice, and EBITDA is a non-standardised measure — confirm any figure used in a transaction or filing with a qualified professional.
