Fitness — Online tools

Use these free web tools directly in your browser, with no signup.

Use these online fitness tools to calculate a running pace, prepare an interval workout, or follow a short Tabata session. The tools run directly in your browser, with a simple, fast interface that works well on mobile.

Interval timer

Create a workout with effort, rest, rounds and preparation.

Pace calculator

Calculate your running pace.

Tabata timer

Start a short, classic or longer Tabata workout.

About these tools

AppErgo fitness tools focus on a few clear uses: calculating pace from a distance and time, organizing a workout with effort and rest phases, or starting a Tabata timer for a short, structured session.

The pace calculator helps review a run or prepare a target. The interval timer is useful for custom training sessions with repeated work and recovery phases. The Tabata timer offers a more direct format for quickly alternating effort and rest.