What is being measured?
Comparison uses the midpoint of the published 50–60 cm range. Published usual dorsal-mantle length range. This excludes the arms and is not an arm-span measurement. This is a range midpoint, not a measured population mean.
The comparison uses the midpoint of the stated range. That midpoint is a chosen reference, not a measured population mean.
- Dimension
- dorsal mantle length
- Reference value
- 55 cm
- Evidence
- Chosen midpoint of a documented range
- In metres
- 0.55 m
- Variant
- Dorsal mantle only
- Source range
- 50–60 cm
- What the range means
- Published usual dorsal-mantle length range. This excludes the arms and is not an arm-span measurement.
Put the length in perspective
One Giant Pacific octopus — mantle represents approximately 6.43 card lengths measured end to end. This is a length ratio; it does not calculate how the objects pack or fit.
Giant Pacific octopus — mantle · 0.55 m
Metre · 1 m
Foot (international) · 0.3048 m