Bathroom Vanity Cost Calculator
Add up a bathroom vanity the way it is actually bought — the cabinet, a countertop sized by its width and depth, the faucet and the install — all on the prices you enter.
Calculator
A 48 in vanity with a 7.32 sq ft top is about $1,316.00 on the prices you entered.
A vanity is four things bought together: the cabinet, the countertop, the faucet and the labor to set and plumb it. The only part that needs sizing is the top — countertops are priced by the square foot, so you convert the vanity’s width and depth into an area first, then price it at your rate.
Enter the cabinet price, the top’s width in inches and depth in feet, your countertop price per square foot, the faucet and the install. The tool works out the top’s square footage and totals the four parts — a clean, no-price-list estimate built entirely from your own figures.
Formula
Convert the top to square feet, then sum:
top_sqft = (top_width_in ÷ 12) × top_depth_ft\ntotal = vanity_unit + (top_sqft × top_price) + faucet + install
Dividing the width by 12 turns inches into feet; a standard vanity top is about 22 in deep, which is roughly 1.83 ft.
Worked example
A 48-inch top is 48 ÷ 12 = 4 ft wide; at a 1.83 ft depth that is 4 × 1.83 = 7.32 sq ft. At $50/sq ft the countertop is 7.32 × 50 = $366.
Add a $600 cabinet, a $150 faucet and $200 to install, and the vanity totals 600 + 366 + 150 + 200 = $1,316 on the prices entered.
Sizing tops and choosing widths
Sizing the top. Vanity cabinets come in standard widths — 24, 30, 36, 48, 60 and 72 inches — and most tops are about 22 in deep, hence the 1.83 ft default. If your top overhangs or you are buying a stock size, use the actual measured dimensions. Solid-surface, quartz and stone tops carry very different prices per square foot, which is exactly why the tool asks for your rate instead of assuming one.
Single vs double. A double-sink vanity is wider, so the top square footage — and often the faucet and plumbing lines — roughly double. Enter the full width and, if you are adding a second faucet, fold it into the faucet line.
Install. A drop-in replacement onto existing plumbing is quick; moving the cabinet or the supply and drain lines adds labor and may bring plumbing scope into play. Use the install figure from your quote.
This is a planning estimate on your numbers. A vanity is usually one line inside a larger job — carry the total back into the bathroom remodel cost tool, and for a kitchen or larger run of counter use the countertop cost tool.
Reference table
Countertop area for standard vanity widths at a 22 in (≈ 1.83 ft) depth:
Multiply the area by your countertop price per square foot.