While many Pilates instructors teach other fitness classes, claiming Pilates instructor as your title suggests an annual average for full-time employment at $46,650, or $24 per hour. Part-time Pilates instructors average more than $21,000 per year, or $26.57 per hour, working just over 15 hours each week.The only other fitness experts making more annually are titled advanced health and fitness specialists and club owners.art-time Pilates instructors average more than $21,000 per year, or $26.57 per hour, working just over 15 hours each week. The only other fitness experts making more annually are titled advanced health and fitness specialists and club owners.