Contact Us
Have a question, found a bug, or want to share feedback? We'd love to hear from you. Fill out the form below and we'll get back to you as soon as possible.
Contact Information
Response Time
We typically respond within 24–48 hours on business days. Bug reports and urgent issues are prioritized.
Other Resources
Quick Tips
- For calculator suggestions, use our suggestion form
- Include steps to reproduce when reporting bugs
- Mention the calculator name and your browser/device
- Check the FAQ below for instant answers
Frequently Asked Questions
Quick answers to common questions
How do I suggest a new calculator?
Visit our Suggest a Calculator page and fill out the form with your idea. Describe what the calculator should compute, who would use it, and any relevant formulas or standards. We review every submission and build the most popular and useful ideas.
How do I report a bug?
Use the contact form above and select "Bug Report" as the subject. Please include the calculator name, what you expected to happen, what actually happened, and your browser and device information. Screenshots are also helpful — you can describe them in the message.
Can I embed a calculator on my website?
Yes! Each calculator page has a "Share & Embed" option. Click the share button on any calculator to get an embed code you can paste into your website's HTML. The embedded calculator is responsive and works on all screen sizes. If you need a custom integration, contact us through the form above.
Is YalmCalc free to use?
Absolutely! All calculators on YalmCalc are completely free to use with no registration required. We believe everyone should have access to accurate calculation tools. The site is supported by non-intrusive advertising, which helps us keep developing new calculators and maintaining existing ones.