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What range of braincase sizes has been found in fossils assigned to Homo habilis?

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An illustration of Homo habilis, an early human ancestor, shown walking upright with a hairy body and ape-like features. A scale beside the figure indicates height in inches and centimeters. — Homo habilis Artist's rendering of *Homo habilis*, which lived from 2 to 1.5 million years ago.

Fossils assigned to Homo habilis exhibit a range of braincase sizes from slightly more than 500 cubic centimeters (cc) to nearly 800 cc (approximately 30.5 to 48.8 cubic inches).1

Specific examples of this variation include:
* ER 1813: Features a cranial capacity of approximately 510 cc.1
* OH 7: Estimated to have a brain volume of about 680 cc.1
* ER 1470: Measured at approximately 775 cc.1

While individual specimens vary significantly, Homo habilis is characterized by a larger braincase than that of the earlier genus Australopithecus.1