Know your real margin, not your gut feeling.

Enter your numbers, see your gross and net margin instantly.

Revenue

Total money in, before any costs. Use a month, quarter, or year — just be consistent.

Cost of goods sold

What each sale directly costs you: materials, production labour, purchase costs.

Operating expenses

Rent, salaries, software, marketing — everything you pay regardless of sales.

Free, instant, and nothing is saved or sent. Figures stay in your browser.

Two margins, two questions

Reading your numbers

Here is what each one is actually telling you.

Gross margin: does the work itself pay?

Revenue minus what each sale directly costs you. If gross margin is weak, no amount of overhead trimming will save the business — the problem is pricing or delivery cost. Most healthy small businesses sit between 20% and 40%; professional services often run higher.

20–40%

healthy range

Net margin: does the whole business pay?

What is left after rent, salaries, software, and marketing. A 10–15% net margin means the business funds its own growth and survives a slow quarter. Below 5%, one surprise bill can put you in the red — even with strong sales.

10–15%

funds its own growth

When the gap between them is the story

Healthy gross margin but thin net margin means overhead is eating the profit — that is usually fixable. Thin gross margin means the core economics need work. Knowing which one you have is the whole point of measuring instead of guessing.

Take it further with a free 30-minute margin review

The calculator tells you where you stand. A Marlow advisor tells you what to do about it. Bring your numbers — or just your rough figures — and leave with a clear next step. No pitch, no obligation, no signup wall.

We sanity-check your inputs

Most margin surprises come from costs filed in the wrong bucket. We will spot the common ones in minutes.
You get one concrete lever

Pricing, COGS, or overhead — we identify the single change most likely to move your margin this quarter.
A simple system to keep it visible

Margin you measure monthly is margin you can manage. We will show you the lightest way to track it.

Request your call

Tell us a little about the business and we will reach out within one business day to schedule.