Hexagon Quilt Calculator

This Hexagon Quilt calculator helps determine the exact number of hexagons needed for a specific quilt size, taking into account crucial factors such as the size of individual hexagons and the desired finished dimensions.

Let’s say you want to make a queen-sized hexagon quilt measuring 90 inches by 108 inches using 2-inch hexagons (measured side to side). A free hexagon quilt calculator quickly determine that you need approximately 2,160 hexagons to complete your project.

Hexagon Quilt Size Chart

Quilt Size	Dimensions (inches)	Hexagon Size (inches)	Approximate Number of Hexagons
Crib	36 x 52	1	1,872
Twin	70 x 90	2	1,575
Full	84 x 90	2	1,890
Queen	90 x 108	2	2,160
King	108 x 108	3	1,296
Throw	50 x 65	1	975
Baby	38 x 49	1	741
Lap	45 x 60	1	900
Toddler	35 x 50	1	700
Doll	18 x 24	0.5	576
Pillow	20 x 26	1	390
Placemat	12 x 18	0.5	288
Coaster	6 x 6	0.25	144

Hexagon Quilt Formula

The formula for calculating the number of hexagons needed for a quilt is:

Number of Hexagons = (Quilt Width / (0.866 Hexagon Size)) (Quilt Length / (0.75 * Hexagon Size))

Where:

Quilt Width and Length are in inches
Hexagon Size is the measurement from side to side in inches
0.866 and 0.75 are constants related to hexagon geometry

Master Formula for Hexagon Size:

Side Length (s) to Width = s × 2
Side Length to Height = s × 1.732 (√3)

Essential Calculations:

Single Hexagon Area:

Area = (3√3 × s²) ÷ 2 Where s = length of one side

Total Hexagons Needed:

Quilt Width ÷ Hexagon Width × Quilt Length ÷ (Hexagon Height × 0.75) = Total Hexagons

Standard Measurements Guide:

1-inch hexagon: Creates 2″ width, 1.732″ height
2-inch hexagon: Creates 4″ width, 3.464″ height
3-inch hexagon: Creates 6″ width, 5.196″ height

Fabric Requirements Formula:

Total Fabric = (Number of Hexagons × Single Hexagon Area) + 15% waste allowance

For example, let’s calculate the number of hexagons for a twin-sized quilt (70″ x 90″) using 2″ hexagons:

Number of Hexagons = (70 / (0.866 2)) (90 / (0.75 2))
= (70 / 1.732) (90 / 1.5)
= 40.42 60
≈ *2,425 hexagons

How Many Hexagons Do You Need for a Hexagon Quilt?

The number of hexagons needed for a quilt depends on the desired finished size and the size of individual hexagons. Let’s consider a baby quilt measuring 36″ x 52″ using 1″ hexagons:

Using our formula:
Number of Hexagons = (36 / (0.866 1)) (52 / (0.75 1))
= (36 / 0.866) (52 / 0.75)
= 41.57 69.33
≈ *2,882 hexagons

Hexagon Quilt Calculator