How Much Fabric Do You Need for Curtains?
For a standard 60-inch window with an 84-inch drop at 2x fullness, expect 6–8 yards of 54-inch fabric per window. The exact amount depends on fullness, header type, and pattern repeat.
Quick Yardage Reference by Window Size
Per window, 54-inch fabric, 2x fullness, rod-pocket header, no pattern repeat.
| Window Width | 63" Drop | 84" Drop | 96" Drop |
|---|---|---|---|
| 36" | 3–4 yd | 4–5 yd | 5–6 yd |
| 48" | 4–5 yd | 5–7 yd | 6–8 yd |
| 60" | 5–7 yd | 6–8 yd | 7–10 yd |
| 72" | 6–8 yd | 8–10 yd | 9–12 yd |
| 96" | 8–10 yd | 10–13 yd | 12–15 yd |
For precise numbers with your exact measurements, feed them into the window fabric planner.
The Curtain Fabric Formula
Curtain yardage is calculated in four steps:
Step 1: Determine the total fabric width. Multiply your window width (or rod width) by the fullness ratio. Standard fullness is 2x, so a 60-inch window needs 120 inches of gathered fabric.
Step 2: Calculate panels needed. Divide the total fabric width by your fabric bolt width (usually 54 inches). Round up. A 120-inch total width ÷ 54-inch fabric = 3 panels (rounded up from 2.2).
Step 3: Determine cut length. Start with your desired drop (floor, sill, or apron length). Add header allowance (4–10 inches depending on header type) and hem allowance (6–8 inches for a double-fold hem). If your fabric has a pattern repeat, round up to the next full repeat.
Step 4: Calculate total yardage. Multiply the number of panels by the cut length. Divide by 36 to convert inches to yards. Multiply by the number of windows.
How Fullness Ratio Affects Yardage
Fullness is the single biggest factor in curtain yardage. It determines how gathered the fabric looks when the curtains are closed.
| Fullness | Look | Fabric Width Needed | Best For |
|---|---|---|---|
| 1.5x | Flat, tailored | 1.5 × window width | Modern, minimal |
| 2x | Standard gather | 2 × window width | Most rooms |
| 2.5x | Full, elegant | 2.5 × window width | Formal rooms, sheers |
| 3x | Luxurious drape | 3 × window width | Grand spaces, sheers |
Header Type and Extra Fabric
The header (top of the curtain) requires additional length for each panel:
- Rod pocket: +6 inches. Fabric folds over the rod, simple and classic.
- Tab top: +8 inches. Fabric loops hang from the rod.
- Grommet: +4 inches. Metal rings punched into a reinforced header.
- Pinch pleat: +10 inches. Fabric is pleated and typically hung from rings or hooks. Uses the most header fabric.
- Ripple fold: +4 inches. Continuous S-curve, modern and commercial look.
Do You Need Lining?
Lining is a separate layer of fabric behind the face fabric. It uses approximately the same yardage as the main fabric (same panels, same drop, minus the header and hem allowances). Standard cotton lining typically costs $5–$10 per yard. Blackout lining costs $8–$15 per yard.
Our drapery yardage tool works out lining separately so you know exactly how much of each to order.
How to Measure Your Window
Width: Measure the curtain rod from end to end (not the window frame). If the rod extends beyond the frame, include the full rod width.
Drop: Measure from the top of the rod (or where the curtain ring hangs) to your desired endpoint. For floor-length curtains, measure to the floor and subtract 0.5 inch for a clean “kiss” hem. For a “puddle” look, add 6–12 inches.
Measure in three places. Floors and ceilings are rarely perfectly level. Measure the drop on the left, center, and right of the window. Use the longest measurement to avoid curtains that are too short on one side.
Outfitting several windows alongside matching cushions or upholstery? You can plan the whole room at once and get curtains, lining, and the rest of the job in one total.