bio

The bio was a Matoran unit of measurement. One bio was equal to approximately 4.5 feet or 1.37 meters.¹ There were 1,000 bio in a kio.^{1, 2}

Notes

A Toa was 1.6 bio tall. There were 1,000 bio in 1 kio.^{3, 4}

A Toa was about 1.6 bio tall. There were 100 bio in 1 kio [sic].⁵

For residents of Metru Nui, keeping a Rahi larger than .5 bio in a private residence was illegal by order of Turaga Dume.⁶

Toa averaged 1.6 bio in height (7.2 feet or 2.19 meters).^{1, 2}

Toa were 1.6 bio. BIONICLE measurements could not be converted to real-world measurements.⁷