Silly Scale Converter
Convert a length or height into 45 silly reference units, from a human hair to the distance to the Moon.
Frequently asked questions
Is this tool free?
Yes. Calchemy tools are free to use in your browser.
Is my data uploaded?
No. The tools are designed to run locally in your browser unless clearly stated otherwise.
Where do these reference sizes come from?
Rounded, commonly-cited average figures for all 45 reference units, spanning a human hair (0.07mm) up to the average distance from the Earth to the Moon (384,400km) - listed smallest to largest so you can scan the full range at a glance.
Is this scientifically precise?
No, it's for fun - real bananas and giraffes vary in size. Use it for a laugh, not an engineering drawing.