Kitchen Cabinet Calculator — Free Online Tool
Planning a kitchen starts with one question: how many cabinets fit this wall? This kitchen cabinet calculator converts wall length into estimated base and wall cabinet counts.
What is the Kitchen Cabinet Calculator?
Standard base cabinets are 24 inches deep and 34.5 inches tall (36 with countertop); wall cabinets are 12 inches deep, typically 30–42 inches tall. Using 3-foot cabinet modules as the planning unit, a 12-foot wall fits about four bases and four walls — the calculator's method.
This is a planning estimate, not a final order: corners need lazy Susans or blind-corner units, sinks and ranges displace cabinets, and fillers cover the odd inches. Use this kitchen cabinet calculator to sanity-check a designer's plan or budget a DIY kitchen before the detailed layout.
How to use this calculator
- Measure the wall length available for cabinets (feet).
- Enter it and click Calculate Cabinets.
- Subtract space for the sink, range, and refrigerator.
- Plan corner solutions and filler strips for leftover inches.
Formula
Frequently asked questions
What is the standard base cabinet size?
24 inches deep × 34.5 inches tall (36 inches with countertop). This kitchen cabinet calculator plans in 3-foot modules.
How deep are wall cabinets?
12 inches standard — shallower than bases so they don't crowd the counter.
What goes in kitchen corners?
Lazy Susans, blind-corner pullouts, or diagonal corner cabinets — plan these separately.
What are cabinet fillers?
Narrow strips that cover leftover inches where cabinets meet walls — every real kitchen needs them.