Buffon's Needle π Estimation

Drop needles onto a floor with parallel lines to estimate π! This classic Monte Carlo method demonstrates how random sampling can solve mathematical problems.

P(crossing) = 2L / (πD)
Therefore: π ≈ 2L × (total drops) / (D × crossings)
Crossing
Not Crossing

π Estimation Convergence

π ≈ ---
Error: ---
0.5
1.0
100
0
Total Needles
0
Crossings
0.0%
Crossing Rate
---
Theoretical Rate