Lining Paper Calculator
Estimate whole lining paper rolls, purchased coverage and cost from your wall area and product values.
Uses total wall area with your spare allowance and rounds the area-based roll count upward. It does not plan strips, wall height, trimming, joins or pattern matching. Use the coverage and price of your actual roll; there is no recommended product value. Cost excludes delivery, taxes and other materials.
B = A × (1 + p/100); N = ceil(B/k); C = N × P; Q = N × k
The roll count uses the original decimal inputs exactly. Other results are approximate and displayed with up to 12 significant digits; TXT includes original inputs and unformatted JavaScript values. The whole roll count must not exceed 9,007,199,254,740,991; other values must remain finite. Very small or unrepresentable positive contributions are rejected.
Calculations and TXT generation happen in this browser; inputs are not uploaded.
Results
- Area including spare (m²)
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- Whole rolls
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- Purchased coverage (m²)
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- Estimated cost
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A QUICK WALKTHROUGH
How to use this tool
- Enter the wall area and your spare percentage.
- Enter coverage, price per roll and a currency label.
- Calculate, then copy or download the results.
Area model and limits
Uses total wall area with your spare allowance and rounds the area-based roll count upward. It does not plan strips, wall height, trimming, joins or pattern matching. Use the coverage and price of your actual roll; there is no recommended product value. Cost excludes delivery, taxes and other materials. B = A × (1 + p/100); N = ceil(B/k); C = N × P; Q = N × k
Results
The roll count uses the original decimal inputs exactly. Other results are approximate and displayed with up to 12 significant digits; TXT includes original inputs and unformatted JavaScript values. The whole roll count must not exceed 9,007,199,254,740,991; other values must remain finite. Very small or unrepresentable positive contributions are rejected.
Calculations and TXT generation happen in this browser; inputs are not uploaded.
Calculations and TXT generation happen in this browser; inputs are not uploaded.
GOOD TO KNOW
Common questions
Does this calculate a strip layout?
No. It estimates rolls from area only. Actual cutting and installation may require a different allowance.