Hex Flat - Hex Point Calculator
Hex Flat Calculator
Calculate across flats and point to point for a regular hex. Enter one value and solve the other.
Input type
Known value
Quick reference:
Across flats = inscribed circle diameter.
Point to point = circumscribed circle diameter.
For a regular hex:
Point to point = Across flats ÷ cos(30°)
Across flats = Point to point × cos(30°)
Across flats = inscribed circle diameter.
Point to point = circumscribed circle diameter.
For a regular hex:
Point to point = Across flats ÷ cos(30°)
Across flats = Point to point × cos(30°)
Across flats—
Point to point—
Hex side length—
Radius—
Regular hex relationships
Across flats = side × √3
Point to point = side × 2
Across flats = side × √3
Point to point = side × 2