Body composition, energy expenditure, and pacing calculators for coaches.
Fitness coaches need accurate, explainable calculations to set client targets and track progress. SpecWhale provides the full suite of body composition, nutrition, and performance calculators that coaches rely on, with clear explanations of the formulas so you can confidently communicate methodology to clients.
Featured Tools for Fitness Coaches & Personal Trainers
Zero-upload, 100% private client-side calculators and converters.
BMI Calculator
Calculate your Body Mass Index (BMI) from height and weight, with WHO category classification.
TDEE Calculator
Estimate your Total Daily Energy Expenditure (TDEE) — all calories burned in a day including exercise and activity.