Games calculators

Coin Flip Simulator & Probability Calculator

Flip 1-500 virtual coins (fair or weighted) and see the heads/tails split and longest streak, or use the probability calculator for exact binomial odds.

Reaction Time Test

Test your simple reaction time over several trials, then compare your average, best, median, and consistency against reaction-time figures from published research.

Click Speed Test

Measure your clicks per second (CPS) and clicks per minute over a timer you choose, then compare your result against the clinical single-finger tapping range from neuropsychology research.