Quilting calculator · iPhone, iPad & Android
The quilting calculator that tells you what to buy.
Type your quilt size. Quiltwell gives the exact yardage for backing, binding and batting — rounded up to the next ⅛ yard — and the seam direction that wastes the least fabric.
Coming soon to the App Store and Google Play.
Inside the app
Every number for the whole quilt
From the size of the top to the last binding strip, in inches with real fractions or in centimetres.
-
Backing
Yardage, panels and the seam direction that wastes least.
Try it free -
Binding
How many strips to cut, and the fabric to buy.
Try it free -
Quilt size for a bed
Any mattress, drop and pillow tuck — with block layouts that fit.
See the size chart -
Borders Pro
Butted or mitred, one border or several.
See it in the app -
On-point setting Pro
Blocks plus side and corner triangles, cut sizes included.
Try it free -
HST, QST & geese Pro
Cut sizes for every method, 2, 4 or 8 at a time.
Try it free -
Ten calculators
Essentials are free. Studio tools come with Pro.
See the app
Try the backing calculator
The same math as the app, free in your browser. Fractions like 60 1/2 work.
Popular quilt sizes
- 36 × 36Baby
- 36 × 52Baby
- 40 × 40Baby
- 40 × 60Crib
- 45 × 60Crib
- 50 × 60Throw
- 50 × 65Throw
- 54 × 72Throw
- 60 × 60Throw
- 60 × 70Throw
- 60 × 72Throw
- 60 × 80Throw
- 66 × 90Twin
- 70 × 90Twin
- 72 × 90Twin
- 80 × 90Full
- 84 × 90Full
- 86 × 100Full
- 84 × 102Queen
- 90 × 100Queen
- 90 × 108Queen
- 92 × 108Queen
- 100 × 100King
- 108 × 108King
- 110 × 110King
- 120 × 120King
All the fabric for a quilt: baby · crib · throw · twin · full · queen · king
Questions quilters ask
How much backing fabric do I need for a quilt?
Add 4 inches to every side of the quilt top, work out how many 40 inch wide panels cover it, and multiply by the panel length. A 90 x 108 inch queen quilt needs 8 1/4 yd of 42-44 inch fabric (3 panels, horizontal seams).
How much binding do I need for a quilt?
The perimeter plus about 12 inches, cut into 2.5 inch strips across the width of fabric. A 90 x 108 inch queen quilt needs 11 strips: 7/8 yd.
What size quilt do I need for a queen bed?
About 84 x 102 inches for a 60 x 80 inch queen mattress with a 12 inch drop and a pillow tuck, or 90 x 108 inches for a deeper mattress.
Is Quiltwell free?
The calculators on this website are free, with no sign-up. In the app, the Essentials (backing, binding, batting and quilt size for a bed) are free; the Studio tools (borders, block layouts, on-point setting, HST/QST and flying geese, cutting yardage, pre-cuts and saved projects) come with Quiltwell Pro.
Does it work in centimetres?
Yes. The calculators and the app work in inches with fractions or in centimetres and metres, and round fabric up to the next 1/8 yard or 10 cm so you never run short.
Every answer uses the same math as the app. How we calculate.
Every quilt calculator in your pocket: borders, setting triangles, HSTs, saved projects and a fabric shopping list.