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Contact Us
Operated by MAFHH INTERNATIONAL LTD (OpsCalculators) · Last updated: September 2026
In short: Email support@opscalculators.com and we will reply within 24 to 48 business hours. Accuracy reports are prioritized. We cannot provide personalized professional advice.
How to reach us
The best way to reach the team behind OpsCalculators.com is by email at support@opscalculators.com. A real person reads every message. Pick the button that matches your message and your email app will open with the subject and a short template already filled in, or write to us directly.
Ask about a tool or leave a message
Prefer to type the address yourself? Email support@opscalculators.com and include one of the topics below in your subject line.
What we can help with
- Calculator error report (priority). If a result looks wrong, tell us the tool, the inputs, and what you expected. We investigate accuracy reports first.
- Methodology question. Ask how a formula or assumption works.
- New tool request. Suggest a calculator you need.
- Business inquiry. Licensing, partnerships, or press.
- Legal or IP matter. Copyright, trademark, or takedown requests.
- General feedback. Anything else.
Response times
| Inquiry type | Target response |
|---|---|
| Calculator error report | Priority, as soon as possible |
| Methodology or tool request | 24 to 48 business hours |
| Business inquiry | 2 to 3 business days |
| Legal or IP matter | Priority |
| General feedback | 24 to 48 business hours |
What we cannot help with
We cannot provide personalized engineering, safety, financial, tax, or legal advice, and we cannot review or certify your specific project. For those, please consult a qualified professional. See our Disclaimer.
Who operates the Site
OpsCalculators.com is operated by MAFHH INTERNATIONAL LTD, a technology and data publishing company serving the United States and international users.
Related pages
Operator: MAFHH INTERNATIONAL LTD · Website: opscalculators.com · Contact: support@opscalculators.com · Last reviewed: September 2026.