🔄 Loop & Interval Timer

Automating Work-Rest Workouts with a Loop Timer

Whether you are powering through Tabata kettlebell swings, bodyweight circuits, physical therapy stretches, or martial arts sparring drills, glancing down at a wristwatch ruins your workout tempo. A dedicated loop timer acts as an automated digital coach, signaling exactly when to push at maximum effort and when to recover, without requiring you to touch your phone mid-set.

Setting Up This Online Loop & Interval Timer

You can configure every variable of your training cycle using this loop timer:

• Work Duration: Set your active exertion period in Work Time (sec) (e.g., 20 seconds for Tabata or 45 seconds for circuit conditioning).
• Rest Duration: Set your recovery interval in Rest Time (sec) (e.g., 10 or 15 seconds).
• Total Rounds: Enter how many total sets you plan to complete (e.g., 8 rounds for a classic 4-minute Tabata session).
• Hands-Free Execution: Click ▶ Start Routine on the loop timer. A crisp chime rings and the screen flashes green (🔥 WORK PHASE). When work ends, a lower recovery tone sounds, the display shifts to amber (☕ REST PHASE), and the round counter advances automatically.

Popular Interval Templates for Your Loop Timer

The 4-Minute Tabata Protocol (20s Work / 10s Rest × 8 Rounds): Developed by Dr. Izumi Tabata for Olympic speed skaters, this 4-minute loop timer structure delivers maximum anaerobic conditioning in minimal time.

Standard Functional Circuit (45s Work / 15s Rest × 10 Rounds): A balanced template for kettlebell swings, jump rope, pushups, and burpees that keeps your heart rate elevated while maintaining strict form.

Desk Mobility & Posture (60s Stretch / 15s Switch × 6 Rounds): Run this loop timer during an afternoon slump to cycle through doorway chest stretches, neck rolls, and hip flexor openers.