GUIDE CATEGORY

Kitchen & Bath guides

Countertops, backsplashes, bathroom tile and the measurements that drive kitchen and bath quotes.

1 guide

Guide

How to Measure Countertops in Square Feet (L-Shapes, Islands and Backsplash)

How to measure countertops in square feet: length × depth in inches ÷ 144 per section, the L-shape corner trap, islands with seating, and a 4 in backsplash, with a worked example.

October 11, 2026 · 7 min read

Calculators for these projects

Countertop Calculator →Add up countertop square footage for straight runs, L-shapes and islands, include a backsplash, add a slab allowance and price it per square foot.
Renovation Budget Calculator →Add up your own quotes for materials, labor, permits, fixtures and disposal. Apply sales tax and a contingency reserve, track what you have paid and compare against your ceiling.