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Sewing Pattern Calculator

Estimate fabric yardage for any sewing pattern based on garment type, size, and fabric width

Fabric Needed

3.5 yd

Cost

$68.00

Lining

2.5 yd

Thread

1

Fabric

3.5 yd

Est. Cost

$68.00

Thread

1 spool

Lining

2.5 yd

Fabric Needed

3.5 yards

at 45" width • 2.5 yd lining • 0.5 yd interfacing

Cost Breakdown

$68.00

Fabric$42.00
Lining$15.00
Interfacing$2.00
Thread + Notions$9.00

Example Calculations

1A-Line Dress with Sleeves (Size M)

Inputs

GarmentA-line dress with sleeves
SizeM (US 8–10)
Fabric Width45 inches
Print TypeSmall floral repeat

Result

Fabric Needed3.5 yards
Base Yardage3 yards
Pattern Matching+0.25 yard
Safety Margin+0.25 yard

An A-line dress with sleeves in size M needs about 3 yards of 45-inch fabric. Small florals add 10% for matching, plus a quarter yard safety margin totals 3.5 yards.

2Casual Pants (Size L, 60-inch Fabric)

Inputs

GarmentStraight-leg pants
SizeL (US 12–14)
Fabric Width60 inches
Print TypeSolid color

Result

Fabric Needed2 yards
Base Yardage1.75 yards
Pattern Matching0 (solid)
Safety Margin+0.25 yard

Straight-leg pants in size L on 60-inch fabric need about 1.75 yards. With solid fabric (no matching needed), add a quarter yard safety for 2 yards total.

3Plaid Shirt (Size XL, 45-inch Fabric)

Inputs

GarmentButton-front shirt
SizeXL (US 16–18)
Fabric Width45 inches
Print TypePlaid (large repeat)

Result

Fabric Needed4 yards
Base Yardage3 yards
Pattern Matching+0.75 yard (plaid)
Safety Margin+0.25 yard

A button-front shirt in XL uses about 3 yards of 45-inch fabric. Plaid matching adds 25% (~0.75 yard) to ensure stripes align at seams and pockets.

Frequently Asked Questions

Q

How much fabric do I need for a dress?

A simple sleeveless dress requires 2–3 yards of 45-inch fabric for sizes S–M, or 3–4 yards for L–XL. A long-sleeved maxi dress needs 4–5 yards. Wider 60-inch fabric reduces yardage by 25–30%. Always buy an extra 0.5 yard for pattern matching and mistakes.

  • Simple shift dress (S–M): 2–2.5 yards of 45-inch fabric
  • A-line dress with sleeves (S–M): 3–3.5 yards of 45-inch fabric
  • Maxi dress (S–M): 3.5–4.5 yards of 45-inch fabric
  • Plus sizes (1X–3X): add 0.5–1 yard to standard amounts
  • 60-inch fabric: multiply 45-inch yardage by 0.7–0.75
Dress Style45-in Fabric (S–M)60-in Fabric (S–M)
Shift/sheath2–2.5 yds1.5–2 yds
A-line with sleeves3–3.5 yds2.5–3 yds
Maxi dress3.5–4.5 yds3–3.5 yds
Full circle skirt dress4–5 yds3–4 yds
Q

How does fabric width affect yardage needed?

Fabric width directly impacts how many pattern pieces fit side by side. Standard quilting cotton is 44–45 inches wide, apparel fabric is 54–60 inches, and knits are often 58–62 inches. Switching from 45-inch to 60-inch fabric typically saves 25–30% in yardage.

  • 44–45 inch fabric: standard for quilting cotton, needs most yardage
  • 54–56 inch fabric: common for linen and woven apparel fabrics
  • 58–60 inch fabric: standard for knits and many apparel fabrics
  • Every 15 inches of extra width saves roughly 25% in yardage
  • Very narrow fabric (36 in): requires 30–40% more than 45-inch estimates
Fabric WidthYardage MultiplierCommon Fabric Types
36 inches1.30–1.40×Specialty silks, vintage
45 inches1.00× (baseline)Quilting cotton, poplin
54 inches0.80–0.85×Linen, gabardine
60 inches0.70–0.75×Knits, ponte, fleece
Q

How much extra fabric should I buy for pattern matching?

For prints with a repeat, buy one extra pattern repeat per yard of fabric. For plaids and stripes, add 15–25% extra. Solid colors need no extra for matching. A typical floral with a 6-inch repeat on a 3-yard project needs about 0.5 yards extra.

  • Solid colors: no extra needed for matching
  • Small all-over prints: add 10% extra
  • Directional prints (one-way nap): add 15–20% extra
  • Plaids and large stripes: add 20–25% extra for matching
  • Large repeat prints (12+ inches): add one full repeat per yard used
Pattern TypeExtra FabricExample
Solid/no repeat0%Plain cotton, linen
Small print10%Tiny florals, dots
Directional15–20%One-way prints, nap fabrics
Plaid/stripes20–25%Buffalo check, wide stripes
Q

How do I calculate fabric for plus sizes?

Plus sizes (1X–3X or US 16–26) typically need 0.5–1.5 yards more fabric than standard sizes. The increase comes from wider pattern pieces that don't nest as efficiently. For a dress, add about 0.75 yards; for pants, add about 0.5 yards over the standard size estimate.

  • Size 16–18 (1X): add 0.5 yard over S–M estimate
  • Size 20–22 (2X): add 0.75–1 yard over S–M estimate
  • Size 24–26 (3X): add 1–1.5 yards over S–M estimate
  • Wider hip/bust pieces reduce nesting efficiency on 45-inch fabric
  • 60-inch fabric is especially beneficial for plus sizes (better nesting)
Size RangeExtra vs. S–MDress Total (45 in)
1X (16–18)+0.5 yd3–4 yds
2X (20–22)+0.75–1 yd3.5–4.5 yds
3X (24–26)+1–1.5 yds4–5 yds

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Last Updated: Mar 9, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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