Own work. Geometry and dimensions from Flag and National Anthem of Samoa Act 1994

1. In this prescription the hoist of the flag from top to bottom is regarded as 144 vertical units, and its breadth from side to side as 288 horizontal units.

2. Each star has its uppermost point on a vertical line through its centres.

3. Two of the stars are disposed with their centres on a vertical line bisecting the blue quarter. The top point of the upper star and bottom points of the lower star are distant 3 vertical units from the upper and lower edges of the blue quarter respectively.

4. The star nearest the staff has its top point distant 21 vertical units from the upper edge of the flag, and its nearest point distant 42 horizontal units from the edge nearest the staff.

5. The star nearest the fly has its top point distant 18 vertical units from the upper edge of the flag, and its nearest point distant 42 horizontal units from the fly edge of the blue quarter.

6. The fifth star has its bottom points distant 26 vertical units from the lower edge of the blue quarter and its nearest point distant 56 horizontal units from the fly edge of the blue quarter.

7. The star nearest the fly edge measures 15, the topmost star and the star nearest the staff 16, the lowest star 20, and the fifth star 10 vertical units measured from the point of any ray to the point of the next ray but one.

—  Schedule attached to Flag and National Anthem of Samoa Act 1994