Wallpaper Size Calculator
Wallpaper Calculator
Estimate how many wallpaper rolls you need based on wall size, roll size, pattern repeat, and waste allowance.
Tip: If your wallpaper has a large pattern repeat, buy an extra roll to ensure matching.
Wallpaper Rolls Needed
—
Enter your measurements to calculate rolls.
Total Wall Area (approx)
— sq ft
Usable Coverage per Roll
— sq ft
Strips per Roll
—
Strips are vertical drops cut from one roll. Repeat reduces usable strips.
Pro Tips
Order the same dye lot
Add 1 roll for mistakes
Save a spare strip
This is an estimate. Always check the manufacturer’s roll coverage and repeat info.
