Contact Us
Have a question, found a bug, or want to suggest a feature? We'd love to hear from you. Fill out the form below and it will open your email client with your message ready to send.
Send Us a Message
What to Expect
We read every message and aim to respond within 48-72 hours. If your inquiry requires research or testing on our end, it may take slightly longer, but we'll acknowledge receipt and keep you updated.
For bug reports, we may follow up with additional questions to help us reproduce and fix the issue. For feature requests, while we can't implement every suggestion, we genuinely consider all feedback when planning updates.
Before You Contact Us
Here are answers to some common questions we receive:
"Is this calculator accurate?"
Our calculator uses established formulas from exercise physiology research, including the Tanaka, Gulati, and HUNT formulas for maximum heart rate estimation, and the Karvonen method for personalized training zones. These are the same formulas used by fitness professionals and sports scientists. However, all heart rate formulas provide estimates based on population averages—individual maximum heart rates can vary by 10-20 BPM from calculated values. For the most accurate results, consider a supervised maximal exercise test. Learn more on our About page.
"Can I use this calculator on my website?"
Linking to Target Heart Rate Calculator is welcome and appreciated—feel free to share our URL with your audience. If you'd like to embed the calculator directly on your website or integrate it into an app, please contact us first to discuss permission and proper attribution. Copying our content or code without permission is not allowed.
"I found a bug"
To help us fix the issue quickly, please include in your email:
- Your browser name and version (e.g., Chrome 120, Safari 17, Firefox 121)
- Your device type (e.g., iPhone 14, Windows laptop, Android tablet)
- Steps to reproduce the bug (what did you click or enter?)
- What you expected to happen vs. what actually happened
- Screenshots if possible
"I have a feature request"
We welcome suggestions for new features, additional calculator tabs, or improvements to existing functionality. When submitting a feature request, it helps if you describe the problem you're trying to solve or the use case you have in mind. We review all suggestions and prioritize based on how many users would benefit.
Feedback Welcome
We're always looking to make Target Heart Rate Calculator better. Whether you have ideas for new calculator features, suggestions for improving the user experience, corrections to our educational content, or just want to let us know the calculator helped you—we appreciate hearing from our users.
Your feedback directly influences how we prioritize updates and improvements. Many of the features in our current calculator came from user suggestions, and we're grateful for every piece of input we receive.
Thank you for using Target Heart Rate Calculator!
Helpful Resources
Before reaching out, these resources may answer your question: