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🪟 How to Measure Windows for Blinds – Complete Guide

Choosing the perfect blinds starts with accurate measurements! Whether you’re fitting inside the window frame or mounting blinds outside, here’s a no-fuss guide to help you measure your windows like a pro.


🛠 What You’ll Need:

  • Metal tape measure

  • Notepad or phone

  • Step stool (for tall windows)

  • Free calculator below!


📏 Step-by-Step Instructions

✅ For Inside Mount Blinds:

  1. Width: Measure the inside width of the window in three places: top, middle, and bottom.
    → Use the smallest width for accuracy.

  2. Height: Measure from the top of the window recess to the sill in three places: left, center, and right.
    → Use the longest height.

✅ For Outside Mount Blinds:

  1. Width: Measure the width you want the blinds to cover, typically 2–3 inches beyond the window frame on each side.

  2. Height: Measure from where you plan to mount the top (above the frame) down to your desired length.


📊 Window Blind Measurement Calculator

Input your measurements in inches or cm below:





🧠 Pro Tips:

  • Always use a metal tape measure for precision.

  • Double-check all figures before ordering.

  • When in doubt, choose slightly larger blinds for outside mounts.

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