How it is calculated
Wall area × coats ÷ coverage per litre, plus 10% waste.
Independent worldwide renovation guidancePrices reviewed July 2026
Plan with confidence · Anywhere
Know what your home project should really cost.
Estimate materials, labour and time using practical price ranges adjusted for your country.
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Typical starting range£444–£596Paint quantity & cost
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Clear quantities, realistic cost ranges and guidance for better decisions.
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Understand the numbers
Paint quantity & cost: calculation guide
Every calculator includes the context you need—not just a total.
Realistic example
A 40 m² room, two coats and 10 m²/L coverage needs about 9 litres.
When to get advice
Use a decorator for high ceilings, severe damp, lead paint or damaged plaster.
Common mistakes to avoid
×Not subtracting large doors and windows
×Buying different paint batches
×Skipping preparation materials
Location matters
Compare regional project costs
Material markets, wages, transport, taxes, climate and building rules all influence your final price.
Plan smarter
Before you start the work
How estimates work
We combine project dimensions, waste, finish level and a location factor. Results are planning ranges—not contractor quotes.
Regional price differences
City access, labour availability, transport, climate, building rules and sales taxes can all change the final cost.
Common estimating mistakes
Measure twice, separate materials from labour, allow for preparation and keep a 10–20% contingency.
When to call a professional
Use qualified local specialists for structure, electricity, gas, asbestos, permits, waterproofing and safety-critical work.