How to Measure Your Countertops
Break your countertop area into separate rectangles. Measure the length and width of each rectangle — islands, peninsulas, and L-shaped sections included. Enter your measurements into the calculator above. Cutouts for sinks or cooktops do not affect square footage.
Why Accurate Measurements Matter
- Estimate material needs and reduce waste.
- Get realistic cost estimates for granite, quartz, marble, and quartzite.
- Plan for overhangs and islands accurately.
- Avoid unexpected costs during installation.
Know your Square Footage?
Use our Instant Countertop Estimator to show an instant price for your custom CountertopsFrequently Asked Questions
How do I use the countertop calculator?
Measure your countertop in rectangles, enter lengths and widths into the calculator, and get an instant square footage and cost estimate.
Is this calculator free?
Yes — always free for homeowners and contractors alike.
Which materials are supported?
Granite, quartz, marble, and quartzite countertops are all supported.
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FL, Granite Countertop Estimate
FL, Granite Countertop Estimate
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CO, Quartz Countertop Estimate
CO, Quartz Countertop Estimate
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NH, Custom Countertop Estimate
NH, Custom Countertop Estimate
(# 463,357) 1/22/2026 12:29:00 AM
IL, Marble Countertop Estimate
IL, Marble Countertop Estimate
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US, Granite Countertop Estimate
US, Granite Countertop Estimate
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US, Quartz Countertop Estimate
US, Quartz Countertop Estimate
(# 463,354) 1/21/2026 11:39:00 PM
US, Custom Countertop Estimate
US, Custom Countertop Estimate
(# 463,353) 1/21/2026 9:37:00 PM
UT, Marble Countertop Estimate
UT, Marble Countertop Estimate
(# 463,352) 1/21/2026 9:35:00 PM
UT, Granite Countertop Estimate
UT, Granite Countertop Estimate
(# 463,351) 1/21/2026 9:18:00 PM
US, Quartz Countertop Estimate
US, Quartz Countertop Estimate
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US, Custom Countertop Estimate
US, Custom Countertop Estimate
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US, Marble Countertop Estimate
US, Marble Countertop Estimate
Trusted by Thousands of Homeowners
“This countertop calculator saved me time and money — highly recommend!” — F. Chiamero
“Accurate and easy to use. Helped us plan our kitchen perfectly.” — T. Jones
