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KPI Dictionary
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Health & Growth KPIs
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Class Performance
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Maintained by FitGrid in collaboration with operators, franchisors, consultants, and investors across the fitness industry. FitGrid does not sell or share studio-level data through this dictionary. The dictionary exists solely to standardize definitions, not to publish rankings.

All Universal Fitness KPIs

At-Risk Client Rate

Average Clients per Class

Average Fill Rate (Utilization)

Core Class Revenue per Client

Core Class Revenue per Instructor

Core Class Revenue per Location

First-Time Client Return Rate

Lead Conversion Rate

New Client Rate

Observed Client Lifetime

Single-Visit Client Rate

Substitution Rate

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