Calculators for Prop Builders

Building something and need help with proportions?

The calculators below should be helpful in sizing common creatures. Each uses a value such as height or length to determine other dimensions.

The lengths of various bones in a bat's wing are computed from a single bone length you enter.

Regardless of your choice of materials, by entering the total height of a biped this will give a list of critical bone lengths.

Enter the height of your furry friend to get dimensions for the other major bones.

Need a hand with creating a simple hand? (Advanced Hand coming soon!)

The lengths of various segments of a spider's legs are computed from a single length you enter.