Question 1

How much extra fabric do I need for curtain fullness?

Accepted Answer

The amount of extra fabric depends on your curtain style. Gathered curtains need 2.5x the window width, grommet curtains need 2x, tab tops need 1.5x, and flat panels need no extra width. This fullness creates the proper drape and appearance when the curtains are closed.

Question 2

Should I mount my curtains inside or outside the window frame?

Accepted Answer

Outside mounting is generally preferred as it makes windows appear larger and blocks more light. Mount the rod 4-6 inches above the window and extend 3-6 inches beyond each side. Inside mounting works well for windows with deep frames or when you want to show off decorative trim.

Question 3

How long should my curtains be?

Accepted Answer

For a classic look, curtains should either hang to the sill, extend 4 inches below the sill (apron length), or reach the floor. Floor-length curtains should hover 1/2 inch above the floor or puddle slightly for a dramatic effect. Avoid awkward mid-calf lengths.

Question 4

What size curtain rod do I need?

Accepted Answer

For outside mounting, extend the rod 3-6 inches beyond the window on each side. The rod should be 1-2 inches wider than your curtain width when fully extended. For inside mounting, the rod should fit snugly within the window frame.

Question 5

How do I calculate fabric needed for different curtain styles?

Accepted Answer

Measure your window width and multiply by the fullness ratio: 2.5x for gathered/pleated, 2x for grommet/rod pocket, 1.5x for tab top, and 1x for flat panels. Add header and hem allowances (typically 8 inches total). Divide by fabric width (usually 54 inches) to determine panels needed.

Question 6

What's the difference between curtains and drapes?

Accepted Answer

Curtains are typically lighter weight, unlined fabrics that hang from tabs, grommets, or rod pockets. Drapes are heavier, often lined panels that usually have pleated headings and hang from hooks or rings. Both follow the same measuring principles but drapes generally require more fullness.

Question 7

How do you calculate curtain size for different window types?

Accepted Answer

To calculate curtain size: 1) Measure window width and height, 2) Add 3-6 inches to width for outside mounting, 3) Multiply width by fullness ratio (2.5x for gathered, 2x for grommet), 4) Add 8 inches to height for header and hem allowances. Our curtain size calculator handles all these calculations automatically.

Question 8

What is a curtain width calculator and how does it work?

Accepted Answer

A curtain width calculator determines the total fabric width needed for your curtains. It takes your window width, adds mounting allowances, then multiplies by the fullness ratio for your chosen style. Our curtain width calculator supports all curtain styles and provides accurate measurements for professional results.

Question 9

How much fabric do I need for curtains calculator?

Accepted Answer

Our 'how much fabric do I need for curtains calculator' considers window size, curtain style, and mounting type. For example, a 48" window with gathered curtains needs 2.5x fullness = 120" fabric width, requiring 3 panels of 54" fabric. The calculator shows exact yardage needed for your project.

Question 10

How do you measure eyelet curtains calculator?

Accepted Answer

To measure eyelet curtains: 1) Measure window width, 2) Add 3-6 inches for outside mounting, 3) Use 2x fullness ratio for grommet/eyelet style, 4) Add 8 inches to height for finishing. Our eyelet curtain width calculator handles these measurements and provides the exact fabric requirements for professional eyelet curtains.

Question 11

What is a curtain gather calculator?

Accepted Answer

A curtain gather calculator determines the fullness needed for gathered curtains. Gathered curtains typically need 2.5x the window width for proper fullness. Our curtain gather calculator automatically applies the correct fullness ratio and calculates the total fabric width needed for beautiful gathered curtains.

Question 12

How do you calculate curtain fabric for different styles?

Accepted Answer

To calculate curtain fabric: 1) Determine window width, 2) Apply fullness ratio (2.5x for gathered, 2x for grommet, 1.5x for tab top), 3) Add mounting allowances, 4) Calculate panels needed (fabric width ÷ 54"), 5) Add length allowances. Our fabric calculator for curtains handles all styles and provides precise measurements.

Question 13

What size curtains do I need calculator?

Accepted Answer

Our 'what size curtains do I need calculator' determines the perfect curtain dimensions for your window. Enter your window measurements, choose your style and mounting preference, and get exact curtain width, length, and fabric requirements. The calculator ensures professional results for any window size or style.

Question 14

How do you use a curtain panel calculator?

Accepted Answer

A curtain panel calculator determines how many fabric panels you need for your curtains. It divides the total fabric width by the standard fabric width (54") and rounds up to the nearest whole number. Our curtain panel calculator shows exactly how many panels to purchase for your specific window and curtain style.

Curtain Size Calculator

Curtain Measurements

Fabric & Hardware

Quick Example Result

How This Calculator Works

The Calculation Method

Curtain Width Calculator & Curtain Measurements Calculator Features

Calculator Types Supported

Curtain Style Fullness Guide

Professional Measuring Tips

Sources & References

Example Calculation

Curtain Size Calculator Input:

How to Calculate Curtain Size Steps:

Frequently Asked Questions

Found This Calculator Helpful?

Related Calculators