Kenny Chesney is commonly reported as 5 feet 6 inches to 5 feet 7 inches tall, with many sources listing him at 170 cm (about 5'7"). Height can vary by source and whether he’s wearing footwear or stage boots, but a widely cited figure is 5'7".
If you’d like, I can narrow down to a single source with the most reliable credentials (e.g., an official bio or reputable entertainment database) and present that as the definitive height.