Spin the Wheel Calculator
Spin a wheel of your own options and see which one lands, plus the angle it stopped at.
Last updated · View algorithm, constants and default inputs (JSON)
About this calculator
Choose among a list with a seeded pseudo-random example spin. Each listed option receives an equal-sized segment, but results are reproducible and are not cryptographically secure or independently audited. Do not use this tool for consequential or official draws.
Worked example
calculated with the default values below
Wheel options, separated by commas Pizza, Tacos, Sushi, Burgers, Salad · Number of spins 1 · Seed 3 Winning option Burgers · Stopped at 259.3 degrees · Degrees per segment 72.00 degrees · Options on the wheel 5 · All spin results Burgers
Disclaimer
These calculators give general estimates for information and entertainment. Platform algorithms, metrics and definitions change without notice, and none of these results are official figures from the platforms named.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
w = list[⌊u×360 ÷ (360÷n)⌋ mod n]; a ← (a + 0x6D2B79F5) mod 2³², u = mix(a) ÷ 2³²
- n
- Number of options
- s
- Seed
- k
- Number of spins
Deterministic seeded PRNG (mulberry32), not random per visit: the same seed and options always give the same winner. Repeated k times; winner is the last spin. Angle 0–360°.
Frequently asked questions
Does using a seed make a wheel draw fair?
A seed makes the result reproducible for the same options and their order. It does not make the draw unpredictable or prove that the seed was selected fairly. The tool also maps its generated number to a stopping angle and an option. Record the options and seed before any consequential draw.