How many wallpaper rolls do I need?

Divide the wall area by the usable area of one roll after pattern-repeat wastage, then round up. A standard roll of 0.53 m × 10 m covers about 5.3 square metres, but a pattern repeat reduces the usable amount.

What is the standard wallpaper roll size?

A common roll is 0.53 m wide and 10 m long, about 5.3 square metres. Some imported rolls differ, so enter your roll's size.

How much extra for pattern matching?

Allow 10 to 15 percent for plain or small patterns and more for large repeats, since each drop must be cut to align.

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Wallpaper Calculator

Find how many wallpaper rolls you need for a wall or room. Enter the area to cover and your roll size, add a pattern-repeat allowance, and get the rolls and cost. Buy from one batch for a consistent shade.

All tools Modular Kitchen False Ceiling Wallpaper Curtain Lighting

Wall & roll

Enter wall as

Measured in

Wall width ft

Wall height ft

Roll size m (width × length)

Pattern / wastage 15%

Roll price ₹ each (optional)

₹

Rolls required—

Wall area—

Usable area per roll—

How it's calculated

One roll's area is its width × length. The wastage allowance reduces the usable area to account for pattern matching and trimming. The wall area divided by usable area per roll, rounded up, gives the number of rolls.

Rolls = ⌈wall area ÷ (roll area × (1 − wastage))⌉. Order all rolls from the same batch for a matching shade.

Frequently asked questions

Should I deduct doors/windows?

For small openings the wastage covers it; for large ones, reduce the wall area.

Why buy from one batch?

Shades vary between print batches, so order together and keep a spare roll.

Big patterns?

Large repeats waste more — push the allowance to 20%+ to be safe.

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