WheelToDecide.com: The Free Online Random Decision Wheel

WheelToDecide.com is your free online tool to generate a random selection quickly and fairly.
Just enter your names, questions, ideas, or numbers, and spin the wheel to decide for you!
Our tool is perfect for classroom teachers, raffles, contests, or any event that requires picking a winnertotally randomly.

Frequently Asked Questions

✦ Auto-Spin Mode: How It Works

If Auto-Spin Mode is enabled, the wheel will accelerate to its full rotation speed, then slowly decelerate to a final stop.
A special algorithm is implemented to ensure the winner is selected according to probability weights.

Conversely, if disabled, the wheel starts rotating as long as you hold down the mouse button or the SPACE key. Once the mouse key (or SPACE key) is released, one of the below happens:

• If the currentwheel rotation speedis less than 50 deg/s, the wheel will accelerate further to its full rotation speed and then stop exactly the same way as if Auto-Spin Mode were enabled. The winner's selection probability is strictly maintained according to element weights.
• If the currentwheel rotation speedis greater than or equal to 50 deg/s, the wheel will start to slow down until the full stop. Then, the winner is determined by the wheel's final stop position.
  In other words, laws of physics are simulated to calculate the wheel rotation speed, and your input and timing influence where the wheel stops.

✦ Is the result really random?

Yes, the result is totally random each time. Each element has exactly the same probability of winning unless different weights are assigned.
Special attention was given during algorithm development and testing to ensure results are not biased in any way.

✦ What is this value displayed in the middle of the wheel?

When the wheel is spinning, this value indicates thewheel rotation speedin degrees per second (deg/s).
E.g., 720 means the wheel is rotating twice in a second.