Help expand
Just How Big?
Just How Big? is a free visual encyclopedia for understanding size and scale.
Each new entry needs research, a carefully scaled illustration and development work. Contributions help turn more measurements into things you can see, compare and use in the classroom.
What support makes possible
- Research and new encyclopedia entries
- Illustrations with checked measurement spans
- Clearer comparisons, games and interactive tools
- Teaching activities and printable resources
- Website maintenance and hosting
Support is completely optional. Payments are handled externally by Ko-fi, and Just How Big? remains free to explore.