So you are looking to get an idea of the cost of countertops. The first step is to understand what measurements you need to figure the price online correctly.  Then go to the price estimator to get your personal estimate. 

This is a basic guide to lean how the professionals figure the countertops and the numbers that are often used for pricing. Keep in mind that some companies do figure things out differently than others, but the basics do remain the same. 

To figure counter top prices, you need some basic sizes. 

Only enter Numbers into the price estimator: for Example 20' 3" would be entered as: 20.25

1. Square Feet: All sections of the counter top must be measured by the length and depth in inches. The depth you will need to add 2" for over hang and material that is removed during fabrication.  A standard kitchen counter is figured as 26". Take the length and multiply by the depth then divide it by 144. Formula : ((L x W)/144) 
2. Odd Shapes: You may notice 2 different odd shapes in the kitchen above A & D. With piece A it has a corner that has a angle, to figure this correctly you do not remove the corner from the calculation, you would measure it in the locations of the dotted lines. With pieces D you will notice that the dotted lines over lap, this is only shown for pricing purposes and you should measure the over lap to get an accurate estimate.
3. Backsplash: Notice the pink areas, this is a basic backsplash of 3-4" tall. Measure only the lineal feet (or length) of material as shown above (E).
4. Finished Edges: When figuring the finished edges (F) you need to figure the lineal feet of all sides that are finished. Countertops touching the wall and backsplashes do not need finishing edges! As these either have it finished or remain unfinished. To figure the lineal feet, measure the lineal inches then divide by 12. Formula: (LINCH /12= Lineal Feet)
5. Shapes: L shape (L) is also called an inside corner. Count the number of these that you have. Or a U shape is the same as 2Lshapes, make sure that you do not add it to both columns. 
6. Sinks: If you have your own sink, select the sink cutout. If you would like us to provide a sink select that, but do not select both unless you need more than one sink. 
7. Built In Stove: This is a stove that has countertops that continue behind and/or in front of the stove.