Estimate liters of wall paint using area, coats, yield and loss margin. Useful for planning renovations, comparing packaging and avoiding purchasing too much or too little than necessary.

When to use it

calculate paint to paint a bedroom or living room: It helps to estimate liters before purchasing material for a wall or room.
compare 3.6 L gallon and 18 L can: Shows how many approximate packages cover the given scenario.
reserve margin for touch-ups and loss: Includes safety percentage for roller, texture, absorption and small adjustments.

How to read the result

Liters with a margin is the main number for planning the purchase.
Gallons and cans are rounded upwards to avoid lack of paint.
Compare packaging considering price, acceptable surplus and possibility of future touch-ups.

Inputs that deserve attention

Area to be painted (m²): Represents the sum of the surfaces that will receive paint. Discount doors and windows only if you want a leaner estimate.
Number of coats: Multiplies the area according to the planned coverage. Strong colors, a new wall or a drastic color change may require more coats.
Yield per liter (m²/L): It is the coverage capacity reported by the product. Use the manufacturer's yield and adjust if the wall is porous or textured.

Method used

Base liters = area in m² multiplied by coats and divided by the yield per liter.
Liters with margin adds the percentage of loss reported by the user.

Limits and validation

Wall texture, previous color, sealer and paint type may change actual consumption.
The estimate does not choose brand, finish or color.
The tool makes it clear that the yield comes from the label or informed estimate.

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FAQ

How to calculate paint per square meter?

Multiply the area by the coats, divide by the yield per liter and apply a margin for losses and touch-ups.

Does the calculator replace the manufacturer's yield?

No. Use the yield on the chosen paint label, because wall, color and product change consumption.