Operating Expenses Calculator
The Operating Expenses Calculator estimates a cost estimation estimate for your scenario from the quantities, rates, period, units and other assumptions requested on the page. Replace the example values with your own operating expenses figures and recalculate after changing an assumption. Use it to compare scenarios, then verify any current rate or fee before acting.
[updated year 2026]
Summary of monthly and annual operating expenses of the business
OpEx per month.
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OpEx per year.
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❓ Frequently Asked Questions
What is the operating expense, OpEx?
OpEx (Operating Expenses) is the cost of running a business on a daily basis, such as salaries, rent, utilities, marketing, maintenance, not including COGS and CapEx.
How is OpEx different from CapEx?
OpEx is capital expenditure, investment in fixed assets, such as software machines that have a long service life.
What percentage of revenue should operating expenses be?
Depending on the industry, service business OpEx may be high 60-80% retail business 20-35% The goal is to give revenue - COGS - OpEx = positive operating profit
How do we reduce OpEx?
Reduce opex by remote work, reduce rents, use cloud software, replace servers, outsource non-core business, negotiate supplier contracts.
English calculator guide
How to use the Operating Expenses Calculator
Use this page to test a specific operating expenses scenario. Enter your own values in the calculator above, review the units beside each field, and recalculate after changing an assumption. The result updates the operating expenses estimate instead of relying on a generic example.
- Build a baseline operating expenses case with figures that match your situation.
- Run a second operating expenses case after changing the rate, period, quantity or other key assumption.
- Record the difference between the two operating expenses results and the input responsible for it.
Inputs for the operating expenses estimate
For this operating expenses calculation, check the quantities, rates, period, units and other assumptions requested on the page. The result is designed to show a cost estimation estimate for your scenario, not a guaranteed provider price or official decision.
How the operating expenses result is calculated
The calculator combines the entered quantities, rates and fixed costs to produce the displayed estimate. Reusing the same operating expenses inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.
Checks for a operating expenses decision
Confirm any current rate, threshold or provider rule that could change the final amount. For operating expenses, Use the result as a commercial planning estimate. Confirm supplier prices, payment-provider fees, taxes, minimum charges and contract terms before setting a price or budget. Check the important inputs and any current provider or authority rules before using the result for a decision.
- Language QA
- Terminology, numeric values and calculator controls checked
- Calculator scope
- Cost estimation
- Last English review
- 26 July 2026