What is being measured?
An editorial midpoint of the FWS 3-to-4-inch adult wingspan range, used for scalar comparisons. It is not a measured population average; individuals and populations vary.
The comparison uses the midpoint of the stated range. That midpoint is a chosen reference, not a measured population mean.
- Dimension
- wingspan
- Reference value
- 3.5 in
- Evidence
- Chosen midpoint of a documented range
- In metres
- 0.0889 m
- Variant
- Danaus plexippus adult; species-account reference
- Source range
- 3–4 in
- What the range means
- Published adult wingspan range. No sample count, sampling date, or probability distribution is stated for this range; the page's 7-to-10-cm counterpart is rounded.
Put the length in perspective
One Adult monarch butterfly represents approximately 1.04 card lengths measured end to end. This is a length ratio; it does not calculate how the objects pack or fit.
Adult monarch butterfly · 0.0889 m
Metre · 1 m
Foot (international) · 0.3048 m