Calculators
Guide
How to use it
- Pick the calculator you need: margin, sales tax, loan or break-even.
- Type your numbers; results update instantly.
- Use the results to set prices or plan financing.
Frequently asked questions
Is the business calculators free?
Yes. The business calculators is 100% free with no limits, no watermark and no paid tier.
Do I need an account or sign-up?
No. There is no account, sign-up or email required. Open the page and start using it.
Can I export or download my results?
Yes. Use Save results under the tip box to download your inputs and results as PDF, Excel (.xlsx) or CSV. Files are created in your browser and include the date generated.
What is the difference between margin and markup?
Margin is profit as a percentage of the selling price. Markup is profit as a percentage of cost. A 50% markup equals a 33.3% margin.
How is the loan payment calculated?
It uses the standard amortization formula with monthly compounding: payment = P × r ÷ (1 − (1 + r)^−n).
What does break-even mean?
It is the number of units you must sell so that revenue covers fixed costs plus variable costs, with zero profit.
Are my files or text uploaded anywhere?
No. This tool runs entirely in your browser using JavaScript. Nothing you enter or open is sent to our servers or stored by us.
Pricing
Free forever. Tips welcome.
Free forever
Every feature, unlimited use, no account. That won't change.
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