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E-commerce Operating Expense Ratio Calculator
Calculate your operating expense ratio, compare it to industry benchmarks, and identify opportunities to improve operational efficiency and reduce overhead.
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How you compare
Your calculated rate against market benchmarks.
Efficient operating structure. Good cost discipline.
Insights
Personalized analysis based on your inputs.
Good
Operating expenses are well below industry average
Your OER of 30.0% is 40.0% below the industry average. This suggests strong cost discipline — but verify you are not underinvesting in growth.
→ Ensure low spending is strategic, not neglect. Check if marketing, R&D, or talent investment is being deferred at the cost of future growth.
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Frequently Asked Questions
What is the operating expense ratio (OER)?
The operating expense ratio measures operating expenses as a percentage of gross revenue. It shows how much of each dollar earned goes to running the business. A lower OER indicates more efficient operations. For example, an OER of 35% means $0.35 of every revenue dollar goes to operating costs.
What is a good operating expense ratio?
A good OER depends on your industry. Technology companies typically run 60-80% OER due to high R&D costs. Retail businesses aim for 20-35%. Real estate targets 35-45%. Manufacturing companies range from 25-40%. Compare your OER to industry benchmarks for meaningful context.
How do I reduce my operating expense ratio?
Reduce OER by increasing revenue without proportionally increasing expenses, automating manual processes, renegotiating vendor contracts, reducing office space costs (remote work), consolidating software subscriptions, and improving employee productivity. Focus on the largest expense categories first.
What expenses are included in operating expenses?
Operating expenses include rent, salaries and wages, utilities, insurance, marketing, office supplies, software subscriptions, professional services, and maintenance. They exclude cost of goods sold (COGS), interest payments, taxes, and depreciation in most calculations.
How does OER differ from the expense ratio used in real estate?
In real estate, the operating expense ratio compares property operating costs to gross operating income and helps evaluate property profitability. In general business, OER compares total operating expenses to revenue. Both measure efficiency but apply to different contexts and use different denominators.