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Paint Coverage Calculator

Room Length (m)

Room Width (m)

Ceiling Height (m)

Number of Coats

What is Paint Coverage Calculator?

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પેઇન્ટ કવરેજ કેલ્ક્યુલેટર અંદાજે છે કે રૂમની દિવાલો અને છતને આવરી લેવા માટે કેટલા લિટર પેઇન્ટની જરૂર છે. સપાટીની રચના અને પેઇન્ટની ગુણવત્તા પર આધાર રાખીને, પ્રમાણભૂત પેઇન્ટ પ્રતિ લિટર આશરે 10-12 m² આવરી લે છે.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

સૂત્ર

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f(x)gallons_needed = (area_sqft / coverage_sqft_per_gallon) × coats

Variable Legend

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પ્રતીક	નામ	એકમ	વર્ણન
area	Area	sq ft	Wall/surface area to paint
cov	Coverage per gallon	sq ft/gal	Typical: 300–400 sq ft/gal
coats	Number of coats	coats	Usually 2; dark→light may need 3
gallons	Paint needed	gallons	Total paint required

How to Paint Coverage Calculator

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1Wall area = 2 × (length + width) × height
2Ceiling area = length × width
3Total area = (walls + ceiling) × number of coats
4Litres needed = total area ÷ 10 (coverage rate)
5Deduct ~1.5 m² per door and ~1 m² per window

Worked Examples

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Example 1

Given:5×4m room, 2.4m ceiling, 2 coats

પરિણામ:~20 litres needed (8 × 2.5L cans)

Example 2

Given:Single wall 4×2.5m, 1 coat

પરિણામ:~1 litre

Example 3

Given:Full house repaint, 150m² walls

પરિણામ:~30 litres per coat

Real-World Applications

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Estimating paint quantities for home interior/exterior projects

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Budgeting paint costs for renovations

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Planning DIY painting efficiency and timeline

Paint Coverage Reference

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Surface	Coverage (m²/L)	Notes
Smooth plaster (emulsion)	12–14 m²/L	Best coverage
Bare plaster (mist coat)	6–8 m²/L	Very absorbent
Rough brick/textured	6–9 m²/L	Absorbs more paint
Gloss/satin woodwork	14–16 m²/L	Less absorptive
Exterior masonry	4–6 m²/L	Most absorptive

Frequently Asked Questions

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How many square feet does 1 gallon cover?

Typical: 350 sq ft for one coat. Varies by paint type, surface texture, colour, and prep.

How many coats do I need?

2 coats standard. Primer + 2 coats if repainting dark to light. High-quality paint may cover in 1.5 coats.

What is primer?

Priming prepares surface, improves adhesion, reduces coats needed. Use when: new drywall, stains, major colour change.

References

›Dulux paint coverage guide

સાથે સરખામણી કરો

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Paint vs Wallpaper

Formula-verified for precision

Reviewed October 2026

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