Paint price: how to compare cost, coverage and quality
Compare paint by finished-area cost, coverage, number of coats, primer needs and room requirements instead of judging value from tin price or price per litre alone.
Compare coverage, coats and tin sizes
- Price per litre ignores coverage and the number of coats required.
- Include primer and consumables when they are part of the system.
- Compare paints intended for the same room, finish and substrate.
Turn the tin price into a useful comparison
Estimate the litres needed from surface area, coats and stated coverage. Divide the product cost by the finished area. This gives a better comparison than looking only at the shelf price.
Coverage can change the real cost
Absorbent walls, major repairs and strong colour changes can need primer or additional coats. A more expensive paint may still cost less overall if it reliably avoids an extra full coat.
Use a simple per-coat example
Paint A at €4/L covering 8 m²/L and paint B at €6/L covering 12 m²/L both have a theoretical product cost of €0.50 per m² per coat. From there, compare washability, finish, real hiding power and suitability for the room.
Quality means suitability, not simply price
Scrub resistance, sheen, substrate compatibility, drying conditions and ease of application can matter more than branding. Compare products with the same intended use and read the technical data sheet.
Compare the cost of painting 24 m²
Suppose both paints need two coats, with no primer, waste or leftover-pack cost included. That means 48 m² of theoretical coat coverage.
- Paint A: 48 ÷ 8 = 6 L; at €4/L, product cost is €24.
- Paint B: 48 ÷ 12 = 4 L; at €6/L, product cost is also €24.
The theoretical cost is equal, but the actual purchase can differ if the required litres are not sold in matching pack sizes. Manufacturer coverage is an estimate and varies with wall condition, colour change and application. Check primer requirements and add a realistic allowance before buying.
Calculate paint quantities for your own room and compare whole-pack prices, not just price per litre.
Confirm a fair like-for-like paint comparison
Before buying materials or carrying out the work, review the assumptions, product data and limits that apply to your real situation.
- Calculate litres from area, coats and coverage.
- Include primer when required.
- Compare the same finish and intended use.
- Keep the colour code and product reference for touch-ups.
Keep a short job record
Record the declared coverage per litre, recommended coats, compatible primer and surface condition for each paint. Compare the estimated cost of the complete coating system rather than shelf price per tin, and allow for different real-world opacity.
BricoDato tip: repeat any important measurement or diagnostic check before making an expensive decision.
Calculate full-tin purchase costs
Use the paint calculator before comparing pack sizes and total project cost. If the work affects fixed electrical systems, structure, hidden leaks, vehicle safety or another safety-critical area, use a qualified professional when appropriate.