Kitchen Square Footage Calculator
Calculate your kitchen's square footage or m² instantly. Enter your exact dimensions below or use the standard sizes in the guide.
What is the average kitchen square footage?
| Kitchen type | Typical size (ft²) | Typical size (m²) |
|---|---|---|
| Small galley kitchen | 70-100 sq ft | 6.5-9.5 m² |
| Standard UK kitchen | 100-150 sq ft | 9.5-14 m² |
| Large family kitchen | 150-250 sq ft | 14-23 m² |
| Open plan kitchen-diner | 250-400 sq ft | 23-37 m² |
| Large open plan | 400+ sq ft | 37+ m² |
How to calculate kitchen square footage
Measure the full length and width of the kitchen in feet including any peninsulas or islands as part of the floor area. Multiply length x width. For L-shaped kitchens split into two rectangles and add the areas together.
Kitchen square footage for flooring
Kitchen floors need a hardwearing, waterproof material. Vinyl LVT and porcelain tiles are most common. Add 15% waste for tiles and 10% for vinyl. Use the links below to calculate exact quantities.
Minimum kitchen size
There is no legal minimum kitchen size in the UK for new builds, but most designers recommend at least 100 sq ft (9.3m²) for a functional kitchen with adequate circulation space between worktops and appliances.
Also useful:
Tile calculator · Laminate calculator · Carpet calculator · Main calculator
Kitchen calculator FAQ
Frequently Asked Questions
What is the average square footage of a kitchen?
A standard UK kitchen is typically 100-150 sq ft (9.5-14 m²). A large family kitchen or open plan kitchen-diner can be 250-400 sq ft (23-37 m²). A small galley kitchen starts at around 70 sq ft.
How do I calculate kitchen square footage?
Measure the kitchen length and width in feet and multiply together. For L-shaped kitchens, split into two rectangles and add the areas. A 10ft x 12ft kitchen is 120 sq ft or 11.1 m².
How much tile do I need for a 100 sq ft kitchen?
For a 100 sq ft kitchen floor with 15% waste allowance you need approximately 115 sq ft of tiles. Use the tile calculator to get the exact number of tiles based on your tile size.
What is a good size for a kitchen?
Most kitchen designers recommend at least 100 sq ft (9.3 m²) for a functional layout. A comfortable family kitchen needs 150 sq ft (14 m²) or more to allow for an island or dining space.