We'd love to hear from you

Contact & Partnerships

Whether it's feedback, a bug report, a media inquiry, or a partnership proposal — we read every message.

Bug Reports

Spotted a calculation error or broken layout? Please describe the issue and the device/browser you're using.

Feature Requests

Have an idea for a new exercise, a unit system, or a tool you'd like to see? We prioritize features our users actually ask for.

Partnerships

We welcome collaborations with fitness brands, health platforms, registered dietitians, and exercise science educators.

Send Us a Message

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I have read and agree to the Privacy Policy. I understand my email will be used solely to respond to this inquiry and will not be added to any mailing list.

Partnership Opportunities

Kalo500 is open to mission-aligned collaborations. We are particularly interested in partnerships with:

Health and fitness platforms seeking to embed or reference our MET-based calorie tools for their user base.
Registered dietitians and certified personal trainers who want to co-develop scientifically reviewed content or tool enhancements.
Sports nutrition and wellness brands interested in tasteful, contextually relevant advertising placements that respect our users' experience.
Academic and research institutions exploring consumer-facing applications of exercise physiology data.

We do not partner with brands whose products or messaging conflict with evidence-based health principles. All partnership proposals are reviewed individually. Please use the form above and select "Partnership Inquiry" as your subject.

More Tools

Exercise Calorie Calculator Full Exercise Library Food Calorie Database BMR Assessment