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Paint Calculation Formula:
The Paint Calculator for Exterior House helps determine the amount of paint needed to cover the exterior surfaces of a house based on the total area, paint coverage per gallon, and number of coats required.
The calculator uses the paint calculation formula:
Where:
Explanation: The formula calculates the total paint needed by dividing the house area by the coverage per gallon, then multiplying by the number of coats to ensure complete coverage.
Details: Accurate paint calculation is essential for budgeting, purchasing the right amount of paint, avoiding waste, and ensuring you have enough paint to complete the job without interruptions.
Tips: Measure the total exterior surface area of your house in square feet. Check the paint can for coverage information (typically 250-400 sq ft per gallon). Consider the surface condition and color change when determining the number of coats needed.
Q1: How do I measure my house's exterior area?
A: Calculate the area of each wall (height × width), add areas of all walls, then subtract areas of windows and doors.
Q2: What is typical paint coverage per gallon?
A: Most exterior paints cover 250-400 square feet per gallon, but this varies by paint type and surface texture.
Q3: How many coats are usually needed for exterior painting?
A: Most exterior projects require 2 coats for proper coverage and durability, especially when changing colors.
Q4: Should I buy extra paint for touch-ups?
A: Yes, it's recommended to purchase 10-15% extra paint for touch-ups and future repairs.
Q5: Does surface texture affect paint coverage?
A: Yes, rough or textured surfaces may require more paint than smooth surfaces due to increased surface area.