Contact

Questions, feedback, or collaboration inquiries? Contact us — we respond within 24–48 hours.

Before reaching out

You might find your answer faster in one of these resources:

• How the TDEE formula works – understand the Mifflin–St Jeor equation behind our calculator.
• How to choose your activity level – pick the right multiplier for accurate results.
• How accurate is the TDEE calculator? – margin of error and how to improve precision.
• TDEE Macro Calculator – split your calories into protein, carbs, and fat.
• Katch–McArdle formula – a more accurate method if you know your body fat percentage.

What we can help with

• Questions about how the TDEE calculator works
• Questions about the formulas and methodology we use
• Bug reports or technical issues with the calculator
• Feature suggestions and improvement ideas
• General feedback, collaboration, or partnership requests

Reporting a bug

To help us fix issues quickly, please include the following in your message:

• The calculator page you were using
• The inputs you entered (age, weight, height, activity level)
• The result you received and what you expected instead
• Your browser and device type