Talk to CalculaMargem
CalculaMargem is maintained by a small team dedicated to building free tools and useful content for entrepreneurs. If you found something that could be improved, we'd love to hear about it.
Error in a formula or calculation
Found a result that looks wrong? Tell us the product, the values used and what result you expected. We check and fix it as fast as possible.
Suggestion for a new calculator
Missing a tool that would make a difference for your business? Tell us which one and why — the best suggestions become new features.
Question about pricing
Have a question about margin, markup, pricing strategy or break-even point? Check the site's content or send us your question.
Partnerships and collaborations
Interested in collaborating on educational content about finance for small businesses? Get in touch and let's talk.
How to Get in Touch
Send your message directly to the email below:
We respond within 3 business days. To speed things up, please include in your message:
- The subject of your contact (error, suggestion, question, partnership)
- A detailed description — the more information, the better
- If it's about a calculator, tell us which page and which values you used
Privacy in Communications
Any information you share by email is used exclusively to respond to your message. We do not add your address to marketing lists without explicit consent. To learn more about how we handle data, see our Privacy Policy.
Explore Our Tools
While you wait for a response, use our free calculators:
Margin Calculator
Calculate profit margin and markup from cost and selling price.
Markup Calculator
Simple markup, divisor markup with expenses, and marketplace presets.
Selling Price
Ideal price with all costs, fees and desired margin.
Profit Calculator
Simplified income statement, gross profit, operating profit and break-even point.