Calculate Break Even in Excel

What this does

The break-even point is where revenue covers all costs. The denominator (price minus variable cost) is the contribution margin: what each sold unit contributes toward fixed costs. Divide fixed costs by it and you get the number of units at which profit is exactly zero — every unit beyond that is profit. Keep the inputs visible and clearly labelled and the whole thing stays auditable — anyone who opens the file later, including you, can see at a glance exactly what feeds the result and change one assumption without hunting through the formula. For “calculate break even in excel”, the reliable version is a short checking loop, not just the first command that appears to work. Run it on a deliberately small range first, watch how the affected cells change, and only then apply the same setup to the full sheet. When a formula is involved, keep the inputs labelled beside it, reference cells instead of typing values, and apply number formatting only after the result checks out. That is what makes a calculation you can defend to a CFO or an auditor useful in real work: repeatable, auditable, and not dependent on memory or luck.

A worked example

Fixed costs are €5,000 per month, the product sells for €25, and each unit costs €15 to make. =5000/(25-15) returns 500 units; break-even revenue is 500×€25 = €12,500. At 499 units the month is a loss; at 501 it is profitable. Break-even is the first sanity check for any product, side project, or pricing change: how many sales until this stops costing money? A practical tip before you scale it up: build it once on a small block of test data, confirm the number against the tool on this page, and only then point it at your real sheet. That one habit catches almost every mistake while it is still cheap to fix, long before a wrong figure reaches a report or a colleague.

In Google Sheets

Everything above works in Google Sheets too. Excel and Sheets share the formula syntax used here; only the surrounding menus are arranged differently. That portability is deliberate — learn it once and it follows you between the two tools and across Windows and Mac. Nothing on this page is behind a login: the tool runs entirely in your browser, the formula is shown in full with one-click copy, and the steps work the same on Windows and Mac. That is the whole promise here — the exact answer, a way to prove it on your own numbers, and just enough context to make it stick. The short version of “calculate break even in excel”: the answer is at the top of this page, the tool proves it on your own numbers, and the sections above explain why it holds so the next variation does not stump you. Excel rewards people who reference cells instead of typing values and who keep inputs separate from formulas, because that is what makes a result you can audit months later. Build it once, deliberately, with the live tool as a check, and you convert a one-off lookup into a reusable skill — which is the whole point of learning the why and not just the what.

Common mistakes

• Mixing time frames — monthly fixed costs against an annual sales target.
• Forgetting per-unit costs like shipping or payment fees in the variable cost.
• A price below variable cost: the margin is negative and no volume ever breaks even.
• Treating semi-fixed costs (a second machine at 2× volume) as flat across all quantities.

Frequently asked questions