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Runway and Burn

What this page is for: a free tool that runs in your browser; the result shows with no login and no email. Next step: all twenty one free tools →

Put in the cash you actually have, what leaves every month, and what comes in. You get your net burn, how many months of runway that buys, the calendar month runway ends, and the revenue number that makes you breakeven. Then test one hire and one cost cut before you commit to either.

1. Cash and revenue

Money you can spend. Leave out a credit line you have not drawn and money you have invoiced but not collected.

Variable cost is everything that only exists because a sale happened. Cost of goods, payment fees, shipping, fulfilment, affiliate payouts. A fixed monthly ad budget is not variable, put it in the list below.

2. Fixed costs, by line

Every dollar that leaves whether or not you sell anything this month. Salaries, your own draw, rent, software, contractors on retainer, a set ad budget.

Fixed cost total: $0 per month

3. Growth rate

How much revenue changes each month, compounded. Drag it and the curve redraws. Use a rate you have actually hit for three months running, not the one you are hoping for, because every number on this page moves with it.

6%

The range runs from a 20 percent monthly decline to 30 percent monthly growth. Fixed costs are held flat while you drag, so the curve shows what revenue growth alone buys you.

4. What if

Where you stand

Net burn per month
$0
Months of runway
0
Runway ends
n/a
Breakeven revenue
$0

Cash over the next 24 months

Month by month

MonthRevenueNet per monthCash at end

Scroll the table sideways on a small screen. Any month where cash has gone below zero is shaded.

Copy summary

Plain text you can paste into an email to a cofounder, an accountant, or a lender. No formatting, nothing to break.

Want this emailed to you? Send it to my inbox. That page is the only one on this site that sends anything, and only when you press the button.

Everything you type is saved to this browser only, under a storage key starting with opsbench. Your figures are never uploaded, and the page makes no request of any kind unless you ask us to email you the PDF, and it keeps working offline if you save the file. Clear everything empties every field and deletes the saved copy from this browser.

What this model assumes

On the calendar: the month shown as the end of runway is the month cash first goes below zero. Payroll usually clears before month end, so plan on being in trouble two or three weeks earlier than that.

Where Opsbench fits

Opsbench sells one full time operations seat at $2,950 per month to US ecommerce brands. A seat is a cost, not a cure. If this page says your runway is short, hiring us makes it shorter, and the honest answer is revenue or cuts, not another line item. The one case where a call is worth your time is the opposite result: you are profitable, runway is not your constraint, and the thing capping the company is how many hours you personally have. Email us the role only if that is you.

What happens after you send it
  1. One email. You describe the work that is not getting done. We tell you honestly whether this is a fit. If it is not, we say so in the reply and you get your afternoon back.
  2. A written scope. One page. The tools, the hours, the specific outcomes the operator owns, and who they report to. Nothing starts until you have read it and agreed.
  3. We assign your operator. Screened against your written scope, with a short written summary of what they have run before and where they are weaker.
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