Standard Quilt Sizes — Complete Guide
Everything you need to know about quilt dimensions from crib to king, including bed drop guidance and fabric requirements.
Why Quilt Sizes Are Not Truly Standardized
Unlike bedding products sold in stores, handmade quilts do not follow a rigid sizing standard. The “standard” sizes you will see listed are really industry guidelines — starting points that most patterns use. The actual dimensions you choose depend on three factors:
- Your mattress depth: Modern pillow-top mattresses are 12–18 inches thick. A vintage mattress might be only 6–8 inches. A deeper mattress requires a larger quilt to achieve the same side drop.
- Desired drop length: How far do you want the quilt to hang over the sides? A 10-inch drop looks neat and modern; a 20-inch drop reaches nearly to the floor.
- Pillow coverage: Add 10–20 inches to the length if you want the quilt to fold over the pillows for a classic look.
Standard Quilt Sizes Chart
| Size Name | Finished Dimensions | Typical Use | Top Fabric | Backing Fabric | Binding |
|---|---|---|---|---|---|
| Crib | 36″ × 52″ (91 × 132 cm) | Baby crib, cot | 2–3 yds | 1.5–2 yds | 0.5 yds |
| Lap / Throw | 50″ × 65″ (127 × 165 cm) | Sofa, armchair | 3–5 yds | 3–4 yds | 0.5 yds |
| Twin | 68″ × 88″ (173 × 224 cm) | Twin / single bed | 5–7 yds | 5.5 yds | 0.75 yds |
| Full / Double | 84″ × 88″ (213 × 224 cm) | Full / double bed | 6–9 yds | 7 yds | 0.75 yds |
| Queen | 90″ × 108″ (229 × 274 cm) | Queen bed | 8–12 yds | 8–9 yds | 0.875–1 yd |
| King | 108″ × 108″ (274 × 274 cm) | King bed | 10–14 yds | 9–10 yds | 1 yd |
| California King | 108″ × 114″ (274 × 290 cm) | Cal King bed | 11–15 yds | 9.5–10.5 yds | 1 yd |
Fabric estimates are approximate, based on standard 42″ wide quilting cotton for the top, and 2–3 pieced panels for backing. See our Backing & Batting Calculator for exact panel layouts.
Mattress Dimensions by Bed Size
The quilt sizes above already include a drop allowance — they are not the same as the mattress dimensions they are built around. If you are calculating a custom size (see the formulas below), start from your actual mattress dimensions:
| Bed Size | Mattress Dimensions |
|---|---|
| Crib | 28″ × 52″ (71 × 132 cm) |
| Twin | 38″ × 75″ (97 × 191 cm) |
| Twin XL | 38″ × 80″ (97 × 203 cm) |
| Full / Double | 54″ × 75″ (137 × 191 cm) |
| Queen | 60″ × 80″ (152 × 203 cm) |
| King | 76″ × 80″ (193 × 203 cm) |
| California King | 72″ × 84″ (183 × 213 cm) |
Mattress dimensions are standard US sizes and can vary slightly by manufacturer — always measure your actual mattress before cutting fabric.
How to Choose the Right Size for Your Bed
Follow this process to determine the ideal finished size for your quilt:
Step 1: Measure Your Mattress
Measure the width, length, and depth of your actual mattress — not just the bed frame. Modern pillow-top mattresses can be 15–18 inches deep. Box springs add another 6–9 inches if you use them.
Step 2: Decide on Drop Length
The “drop” is how far the quilt hangs over the side of the mattress. Common choices:
- 10–12 inch drop: Modern look, exposes the box spring or bed skirt
- 15–18 inch drop: Traditional look, covers most of the box spring
- Floor length: Dramatic, formal — needs a 24–30 inch drop
Step 3: Calculate Your Quilt Width
Example: Queen mattress (60″ wide) + 15″ drop on each side = 60 + 30 = 90″ wide quilt
Step 4: Calculate Your Quilt Length
Example: Queen mattress (80″ long) + 15″ foot drop + 15″ pillow tuck = 80 + 15 + 15 = 110″ long quilt
How Quilt Size Affects Fabric Requirements
Fabric requirements scale with the area of the quilt, not just the width or length. A quilt that is twice as large in both dimensions needs four times the fabric. This is why going from a throw to a queen quilt can feel like such a dramatic jump in material costs.
A few key rules of thumb:
- A simple lap quilt uses roughly 3–5 yards of fabric for the top and 3–4 yards for the backing
- A queen quilt uses roughly 8–12 yards for the top and 8–9 yards for the backing
- Binding adds about ½–¾ yard regardless of quilt size for most beds
- Complex block designs with many fabrics increase total yardage because waste is higher
Always add 10–15% to calculated fabric amounts for shrinkage, cutting errors, and pattern matching with directional prints.
Special Cases: Non-Standard Quilt Uses
Not every quilt goes on a bed. Here are sizing guidelines for other uses:
Wall Hangings
No standard size — design to fit your wall space. Common sizes range from 12″ × 12″ for small art pieces to 48″ × 60″ for large statement pieces. Leave a 2–3 inch border all around the design for visual breathing room.
Table Runners
Typically 12–16 inches wide and the length of your table minus 12–18 inches (so the runner does not overhang the ends). A common table runner is 14″ × 54″ for a standard dining table.
Baby Quilts
Crib quilts (36″ × 52″) fit standard crib mattresses. Many quilters make them slightly larger (40″ × 55″) so the quilt can be used as a play mat or tummy time mat. Avoid very large sizes for actual crib use as excess fabric can be a safety concern for infants.
Quilt Sizes by Region
The sizes above follow US bed-size naming. If you are working from a pattern written for another country, mattress and bedding sizes — and the names used for them — differ. These are general references; always confirm against your own mattress since sizes vary by manufacturer and country.
- UK: Single ≈ 90×190cm (35″×75″), Double ≈ 135×190cm (53″×75″), King ≈ 150×200cm (59″×79″), Super King ≈ 180×200cm (71″×79″). UK quilts are commonly sized to match a duvet cover rather than a US-style drop allowance.
- Australia: Single ≈ 92×188cm (36″×74″), Double ≈ 138×188cm (54″×74″), Queen ≈ 153×203cm (60″×80″), King ≈ 183×203cm (72″×80″) — Australian King is wider than a US King.
- Europe: Sizing varies more by country than in the US or UK. Common mattress widths are 90cm (single), 140cm or 160cm (double/queen equivalent), and 180cm (king equivalent), typically 200cm long.
Whatever region you are sizing for, the same formula from Step 3 and Step 4 above applies — start from the actual mattress dimensions and add your chosen drop.
Frequently Asked Questions
What are the standard quilt sizes in inches?
Standard finished quilt sizes: Crib 36″×52″, Throw 50″×65″, Twin 68″×88″, Full/Double 84″×88″, Queen 90″×108″, King 108″×108″. These are guidelines, not rules — quilters frequently adjust dimensions to fit their specific needs.
How much bigger should a quilt be than the mattress?
Add the mattress depth on each side for a drop. Standard mattresses are 8–12″ deep; pillow-top mattresses 12–18″. For a quilt that hangs 10–15″ over the sides, add 20–30″ to the mattress width. Add extra length if you want the quilt to tuck under pillows.
Why are quilt sizes not standardized?
Quilt sizes vary because mattress depths have changed significantly over the decades (modern pillow-top mattresses are much thicker than vintage mattresses), and quilters adjust sizes based on personal preference for drop length, pillow coverage, and whether a bed skirt is used.
What's the difference between a King and a California King quilt?
A standard King quilt (108″×108″) is square, while a California King quilt (108″×114″) is the same width but 6″ longer. Cal King mattresses are built narrower and longer than standard King mattresses, so double-check which one your bed actually uses before cutting fabric.
Why isn't my quilt the same size as my mattress?
A quilt cut to exact mattress dimensions would only cover the top of the bed with no overhang. The drop allowance — typically 10–18″ per side — is what lets the quilt hang down the sides and, if desired, tuck under the pillows.
What size batting do I need for my quilt?
Buy batting at least 4–8″ larger than your finished quilt top on all sides to allow for quilting take-up and squaring up afterward. Most batting is sold in the same standard sizes as the chart above (crib, twin, full, queen, king), so round up to the next standard size if your quilt top falls between sizes.
What size quilt makes the best gift?
Lap/throw (50″×65″) is the most popular gift size — it fits any sofa or chair regardless of the recipient's bed size, and takes a fraction of the fabric and time of a bed-size quilt. For a baby gift, crib size (36″×52″) or a slightly larger 40″×55″ play-mat size both work well.
How much does backing and binding yardage change by quilt size?
Backing scales with area, similar to the quilt top, ranging from about 1.5 yards for a crib quilt up to 9–10.5 yards for a king or California king. Binding scales with perimeter, not area, so it changes far less — from about 0.5 yards for a small quilt up to about 1 yard for the largest bed sizes. See the chart above for exact figures by size.
Are UK and US quilt sizes the same?
No. UK bedding is sized to match a duvet cover system and uses different names (Single, Double, King, Super King) with different dimensions than US Twin, Full, Queen, and King. See the "Quilt Sizes by Region" section above for approximate conversions.
What size should I make a quilt if I don't know the exact mattress dimensions?
Use the standard mattress dimensions table above for your bed size (e.g., Queen is 60″×80″), then apply the width and length formulas in Step 3 and Step 4. This gets you very close without needing to measure — just confirm the finished size still looks right once you can measure the actual mattress.
Try the Interactive Quilt Sizes Tool
This guide covers the why and how. For the interactive version — browse standard sizes with block counts and fabric yardage estimates, toggle between inches and centimeters, and print a reference sheet — use the Quilt Sizes Chart tool.
View the Quilt Sizes Chart →Ready to calculate exact fabric yardage for your quilt? Use the Fabric Yardage Calculator for a complete breakdown including blocks, sashing, borders, and backing.