Contate-nos — Suporte da Calculadora de Proporção

Tem dúvidas, ideias de melhorias ou consultas matemáticas? Preencha o formulário e responderemos em até 24 horas.

Math & Formula Inquiries

Questions regarding calculation steps, GCD algorithms, cross-multiplication proofs, or unit conversions.

Feature Requests & Ideas

Suggest a new ratio calculator, custom unit presets, or user interface improvements for our toolkit.

Prompt Response Time

Our editorial and technical team reviews all incoming inquiries and replies within 24–48 business hours.

Ou envie um e-mail diretamente para hello@ratiocalculator.net

Direct Contact & Support Guidelines

Prefer to write to us directly from your email client? You can send an email anytime to hello@ratiocalculator.net.

For Bug & Error Reports: Please provide the calculator URL, input values entered, and expected mathematical result.

For New Calculator Requests: Include the target formula, industry application, and any required unit standards.

Frequently Asked Questions

Are all 38 ratio calculators free to use?

Yes. Every calculator on Calculadora de Proporção is 100% free with no registration, accounts, or subscription fees.

Can I suggest a specialized calculation tool?

Absolutely. If your field requires a specific ratio formula (for engineering, chemistry, baking, or finance), send us the formula details and we'll evaluate adding it.

Can educators use these tools in class?

Yes. Teachers, students, and academic institutions are welcome to use our tools, step-by-step breakdown guides, and Blog freely.

How is my personal information protected?

We only use your submitted email to answer your inquiry. We never share or sell contact information. Read our Política de Privacidade for full details.