Find your true daily operating cost, or see it as a percentage of revenue
💡 Why This Matters Knowing your true cost of doing business — what it takes to run your operation for a single day — helps you price with confidence, spot inefficiency early, and compare yourself fairly against competitors in your industry.
A 1% drop in your cost of doing business can be worth more to your bottom line than a 1% jump in sales — because it flows straight through to profit without needing a single new customer.
As an Amazon Associate we earn from qualifying purchases.
We do our best to link products that we genuinely believe are organic, no disposable junk, sustainable, and built to last.
In Per-Day mode, we divide your total annual operating cost by the number of days your business actually operates in a year: cost of doing business = total annual cost ÷ billable days. This gives you a single, concrete number — what it costs to keep the lights on for one day. In % of Revenue mode, we instead divide total annual cost by total annual revenue and multiply by 100, showing what share of every dollar earned goes toward simply running the business.
A lower per-day cost, relative to competitors in your industry, generally signals a leaner, more efficient operation. For the percentage view, a lower number means more of your revenue converts to profit — a business spending 90% of revenue just to operate has far less breathing room than one spending 60%. There's no single "good" number industry-wide; the right comparison is against similar businesses in your own space.
This calculator treats cost as a flat daily average, but real businesses have seasonal swings — a landscaping company's costs don't distribute evenly across 365 days. It also doesn't separate fixed from variable costs, so it won't tell you which expenses shrink if you close early on a slow day. Use it as a planning baseline, not a precise daily ledger.
Once you know your daily cost or cost-to-revenue ratio, use it to sanity-check your pricing — are you charging enough per day to comfortably clear that number? Track it quarter over quarter to see whether efficiency improvements (or creeping expenses) are moving the needle, and compare it against what you can find on competitors in your industry.
Per-Day example: Say your total annual cost is $600,000 and your business operates 200 billable days a year. Plug those into the formula: $600,000 ÷ 200 = $3,000 per day.
% of Revenue example: Same $600,000 annual cost, but now against $900,000 in annual revenue: $600,000 ÷ $900,000 × 100 = 66.7% of revenue goes to running the business.
It's your total annual operating cost expressed on a per-day basis — essentially, what it costs to keep the doors open for one day. It's calculated by dividing your total annual cost by the number of billable or operating days in a year.
Switch to the Percent of Revenue tab, enter your total annual cost and your total annual revenue, and divide the cost by the revenue. A lower percentage means more of each dollar earned stays as profit.
Use the number of days your business is actually running or generating revenue in a year — not just 365. Most businesses land somewhere between 200 and 260, depending on weekends, holidays, and seasonal closures.
There's no universal number — it varies heavily by industry. The most useful comparison is against close competitors in your own industry rather than a generic benchmark.