Cat flea
2 mm (0.07874 in)
Adult body length
The flea found on cats and dogs, flattened side to side for slipping through fur. 1 to 3 mm long.
Published
How big is that?
2 mm is 29 times the width of a human hair and 28% of a grain of rice.
Cat flea is the 12th largest of the 32 Tiny Worlds objects, and the 21st smallest of the 172 objects across all five SizeItUp games.
Closest in size from the other games: Black peppercorn (Kitchen Table), 4.865 mm across.
Size comparison
To scale, smallest to largest: Cat flea in orange beside the Tiny Worlds objects nearest in size, in teal.
| Object | Size | vs Cat flea |
|---|---|---|
| Green peach aphid (Wingless adult)A sap-sucking garden pest, seen from the side with its two tail pipes. | 1.85 mm long | 93% of the size |
| Chia seedA small speckled seed from Salvia hispanica. | 1.96 mm long | about the same |
| Cat flea | 2 mm long | – |
| Head louse (Adult)The wingless insect that lives in human hair, seen from above. | 2.5 mm long | 1.3× bigger |
| Argentine ant (Worker)A tiny brown ant that forms supercolonies, seen from the side. All workers are one size. | 2.5 mm long | 1.3× bigger |
In other units
| Millimetres | 2 |
|---|---|
| Centimetres | 0.2 |
| Metres | 0.002 |
| Inches | 0.07874 |
How it's measured
Adult body length. Midpoint of 1 to 3 mm (University of Florida IFAS).
The source gives a range, so this is the middle of it.
Sources
- journals.flvc.org: UF/IFAS EENY-011: about one to three mm in size.
- animaldiversity.org (supporting): Animal Diversity Web: cat fleas are 2 mm long.
Checked against the source on .
Could you have guessed it by eye?
Cat flea is one of the objects in Tiny Worlds, a daily size comparison game: you stretch a shape to the size you think is right beside one you know.