Fun-Per-Dollar Analysis Lab
Compare the experiential value of different play and learning activities. Our proprietary FPD index helps educators and parents make data-driven decisions about sensory investments.
Fun-Per-Dollar Calculator
Benchmark results
Performance Radar
Complete the calculator to see how your scenario compares.
| Scenario | FPD | FVS (0–100) |
|---|---|---|
| LAB SAND (50 lb) | — | — |
| Kinetic Sand (5 lb) | — | — |
| Play-Doh Mega Pack | — | — |
| Finger Paint Classroom Set | — | — |
| LEGO Classic Creative Box | — | — |
| Your scenario | — | — |
How the Fun-Per-Dollar Index Works
We multiply projected engagement inputs—hours (E), simultaneous participants (N), reuse factor (R), and sensory depth (S)—then divide by real-world cost (C). The output (FPD) reflects total fun-efficiency per dollar. Normalizing to the best-performing scenario yields the Fun Value Score (FVS) on a 0–100 scale.
With Modifiers: FPD = (E × N × R × S × NoveltyDecay × GroupSynergy) ÷ C
Normalization: FVS = 100 × (FPD ÷ FPDmax)
Inputs are best estimated by observing similar activities, interviewing facilitators, or running short pilots. Adjust as you collect data, and explore advanced modifiers like novelty decay or group synergy in future updates.
Advanced modifiers now available: novelty decay models engagement drop-off with repeated use, while group synergy captures social amplification effects in collaborative play.