A useful coaching calculator does more than produce a calorie number. It should make its method clear, reflect the coach's approach, explain the result responsibly and fit naturally into the client journey.
This guide compares the main categories of calorie calculator, the Mifflin-St Jeor, Harris-Benedict and Katch-McArdle formulas, and the practical questions coaches should ask before publishing one.
It also explains how branding, lead capture, follow-up and regular target reviews turn a standalone calculation into a valuable coaching tool.