50 Specialist Calculators
Instant Results - No Sign-Up
Free to Use
Professional tools for serious builders

A kitchen refit is consistently rated as the most impactful interior renovation in UK homes - whether you are replacing units and worktops in an existing layout or opening up a kitchen-diner. The materials involved span multiple trades and getting the quantities right for each is critical: a tile shortfall means a dye-lot mismatch, a worktop underestimate means costly delays when the fitters arrive.

This project kit covers every material category in a typical kitchen refit in the correct order. Start with floor tiles and splashback tiles, then calculate adhesive and grout for both areas together. Move on to worktop linear metres, wall paint coverage, plasterboard for any walls that need boarding out, and finally skirting board around the room perimeter. Each calculator opens pre-loaded with your room dimensions.

The splashback area is calculated automatically from your worktop run at the standard 600mm height, so you only need to enter the room measurements once and the numbers flow through every stage of the checklist.

What this kit covers

Work through these 6 calculators in order. Each one uses your room dimensions to pre-fill the key inputs - just refine the details and save each result to your project.

1
Ceramic & Porcelain Tile Calculator
Calculate floor tiles and splashback tiles. Enter the area dimensions and tile size - cutting waste is included automatically.
Open calculator
2
Adhesive & Grout
Work out tile adhesive and grout quantities for your floor tiles and any splashback areas.
Open calculator
3
Kitchen Worktop Calculator
Calculate the linear metres of worktop needed for your kitchen layout, accounting for corners and joints.
Open calculator
4
Interior Paint
Calculate paint for kitchen walls and ceiling. Enter wall area and the calculator works out litres per coat.
Open calculator
5
Plasterboard Calculator
If any walls need boarding out or patching, calculate plasterboard sheets, screws and jointing materials.
Open calculator
6
Skirting Board Calculator
Calculate the linear metres of skirting board needed for the room perimeter, deducting for fitted units and door openings.
Open calculator

Start this project

Enter your room dimensions and we'll create a project with pre-filled starting points for each calculator.

Total linear metres of worktop along the walls

Saves to My Projects. Free accounts get 1 project - go Pro for unlimited.

No free project slots

Your free account is limited to 1 saved project. To start this kit you can delete an existing project to free up a slot, or upgrade to Pro for unlimited projects.

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