Paint Calculator UK
Our free UK paint calculator estimates how many litres of paint you will need based on your wall area and the standard paint coverage rate. Whether painting one wall or a whole house, get an accurate figure before you buy.
Paint Required
Liters of Paint
Total Coverage
60.0 m²
How Paint Coverage and Volume Are Estimated
This calculator estimates paint volume needed based on the total wall area and paint coverage rate. Formula: Litres Required = Wall Area (m²) ÷ Coverage Rate (m² per litre). Standard UK paint covers approximately 10–12m² per litre for emulsion. Inputs: room dimensions, number of windows and doors, number of coats, and paint type. Outputs: total litres required and number of standard 2.5L or 5L tins to purchase.
Frequently Asked Questions
How does the UK Paint Calculator work?
Our UK paint calculator calculates material quantities using standard construction formulas and UK building specifications. Enter your project dimensions and get an instant materials estimate, including a standard waste allowance.
Does this Paint Calculator include a waste factor for UK building projects?
Yes. Our paint calculator automatically includes a 10% waste factor in all material estimates, in line with standard UK building industry practice. This helps ensure you order enough materials without significant overspend.
Can this Paint Calculator be used for both DIY and professional projects in the UK?
Yes. Our paint calculator is designed for both UK DIY enthusiasts and professional builders and contractors. Results are accurate enough for ordering estimates and project planning, though on-site conditions may require adjustment.
Does the Paint Calculator work for UK metric measurements?
Yes. Our paint calculator works in metric units (metres, centimetres, cubic metres, kilograms) as standard — consistent with UK building regulations and supplier specifications. Imperial measurements are also supported where relevant.
Is this UK Paint Calculator free to use?
Yes. Our paint calculator is completely free to use on any device with no account or registration required. Use it to plan your UK building project quickly and accurately before visiting a builder's merchant or placing orders.