Transparent fitness math for everyday planning.

Hooping is a calculator-first fitness resource for people who want clear estimates without pretending that a formula knows everything about their body. The site covers calorie needs, macros, body composition, hydration, pace, and strength planning.

Editorial approach

Each calculator explains the formula being used, the assumptions behind the output, and the practical limits of the result. We write for readers who want useful starting points, not exaggerated precision.

What makes the calculators useful

Hooping keeps inputs simple, shows results immediately, and includes method notes so readers can decide whether a number makes sense for their goal. Estimates should be checked against real-world trends such as body weight, training performance, hunger, sleep, and recovery.