1. What is a Wallpaper Calculator in Feet?

Definition: This calculator estimates the number of wallpaper rolls needed based on wall area and roll coverage.

Purpose: It helps homeowners and decorators determine how much wallpaper to purchase for a room.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( R \) — Rolls of wallpaper needed (rounded up)
• \( A \) — Total wall area (square feet)
• \( Roll\_A \) — Area covered by one roll (square feet)

Explanation: The total wall area is divided by the coverage per roll, then rounded up to the nearest whole number since you can't buy partial rolls.

3. Importance of Wallpaper Calculation

Details: Accurate calculation prevents over-purchasing (saving money) or under-purchasing (preventing color mismatch from different batches).

4. Using the Calculator

Tips: Enter the total wall area in square feet and the coverage per roll (default 30 ft²). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure wall area?
A: Measure each wall's height and width, multiply to get area, then sum all walls. Subtract window/door areas.

Q2: What's standard roll coverage?
A: Most wallpaper rolls cover about 30 square feet, but check your specific product as coverage varies.

Q3: Why round up the result?
A: You must purchase whole rolls, and having extra is better than running short mid-project.

Q4: Should I account for pattern repeats?
A: This calculator doesn't account for pattern matching. For large patterns, you may need 10-20% more wallpaper.

Q5: Does this include waste or mistakes?
A: No, consider adding 10-15% to the calculated rolls for mistakes and future repairs.