Free Curtain Fabric Yardage Calculator
Select a preset or enter custom dimensions. Results update in real time.
Why Use a Free Curtain Fabric Calculator?
Buying fabric for curtains is one of the easiest places to overspend — or underspend and run out mid-project. A free curtain fabric calculator eliminates both risks. Instead of guessing "how many yards for curtains" and ending up with leftover fabric you cannot return, you get an exact number based on your actual window dimensions, chosen fullness, hem allowances, and fabric width.
Most fabric stores do not accept returns on cut fabric. A miscalculation that is off by even half a yard can cost you $10-30 on decor fabrics. For a full set of living room curtains, the margin of error compounds quickly. Using a free curtain fabric calculator before you shop means you walk into the store with a precise number — no second trips, no wasted material.
Free Curtain Fabric Calculator vs. Store Calculators
Many fabric store websites offer a "free curtain fabric calculator," but there are important differences in what they calculate. Store calculators often skip the fullness ratio or use a generic default — which means you end up buying less fabric than you actually need for a professional look.
This free curtain fabric calculator lets you adjust every variable: fullness ratio (1.5x to 3x), hem allowance, header allowance, pattern repeat, fabric width, and waste percentage. It also toggles between inches and centimeters. No account. No email. No limits.
Curtain Yardage Chart — Free Quick Reference
Use this table for a rough estimate (2x fullness, 54" fabric, 4" hem, 3" header). The calculator above gives you the exact number for your specific window.
| Window Size | Panels | Fabric Width | Free Yardage Estimate | Notes |
|---|---|---|---|---|
| 24" x 36" (Small) | 1 | 54" | 1.25 yards | 1 width per panel |
| 36" x 60" (Standard) | 1 | 54" | 2 yards | 1 width per panel |
| 48" x 84" (Tall) | 1 | 54" | 2.5 yards | 1 width per panel |
| 72" x 80" (Patio Door) | 2 | 54" | 5 yards | 2 widths per panel |
| 96" x 96" (Large Window) | 2 | 54" | 6 yards | 2 widths per panel |
| 108" x 84" (Sliding Door) | 3 | 54" | 7.5 yards | 2 widths per panel |
| 60" x 84" (Tall Wide) | 1 | 108" | 2.5 yards | 1 extra-wide width |
All yardages rounded to nearest quarter yard, includes 10% waste. Use the free calculator above for exact results.