Human Performance Tool

Ruler Drop Reaction Timer

Enter the catch distance in centimeters and get an instant reaction time estimate in milliseconds using your conversion table.

Choose age 14 or 15, then enter distance from 1 to 30 cm. Decimal values are linearly estimated between table entries.

Reaction Time

-- ms

Enter a distance and press Convert.

Convert a distance to see your performance comment.

Age Comparison Chart

Average reaction time from saved results by age.

Save some results to compare age groups.

Distance to Reaction Time Table

Distance (cm) Reaction Time (ms) Distance (cm) Reaction Time (ms)