KDP cover calculator: get your Amazon cover sized right the first time.

Your full cover is the front, the back, and the spine side by side, plus bleed on all four outer edges. The spine depends on your page count, paper type, and binding, so it changes every time your page count does. Enter those details into our Amazon KDP cover calculator above and you'll get the exact size in inches or centimeters.

Amazon's print requirements run to 150+ rules, and details like spine width change with every page count, paper type, and binding combination. Checking by hand means digging through KDP's documentation and doing the math yourself, something a KDP calculator does in seconds. One missed decimal is enough to get your cover rejected. KDP Always runs the same checks in seconds and shows you what needs fixing before you pay for the exact fix.

It depends on how many pages you have and what paper you print on. White paper, cream paper, and color printing all have different thicknesses, and hardcover adds board on top. There's no single number, which is why guessing is the most common reason covers come back. That's exactly what our KDP calculator works out for you, the same way Amazon KDP checks it.

KDP asks for 0.125 inches (3.2 mm) of bleed on the top, bottom, and outer edges of a print cover. Bleed is extra artwork past the trim line, so that when the blade lands slightly off during Amazon KDP book printing, you still get color to the very edge instead of a white sliver. Our KDP calculator builds this bleed into your free template, and KDP Always adds it to the fixed file too.

Trim size is your finished book after cutting, for example 6 x 9 inches. Cover size is the whole printed sheet that wraps around it, which is roughly twice the trim width plus the spine plus bleed. People often design at trim size by mistake, which makes the artwork far too small. The KDP calculator gives you the full cover size from your trim size, so you start on the right canvas.

Right here. KDP Always's free KDP cover template generator builds a blank cover template to your book's measurements, with the trim, bleed, and spine already marked. It's free, and it opens in Canva, Photoshop, or anything else you design in.

There isn't one answer, because it changes with your trim size and page count. A 200-page 6 x 9 paperback needs a different cover from a 400-page one, even though the books look the same size on a shelf. Enter your details into the Amazon KDP cover calculator above and you'll get the exact figure rather than a rough guide.

KDP accepts both and converts your file automatically when it prints, so KDP Always never charges you to change color mode. Do keep in mind that bright screen colors can look duller once printed, whichever mode you supply.

Yes. You don't need to know spine formulas or KDP's print requirements. Enter your book's trim size, page count, paper, and binding into the Amazon KDP cover calculator, and KDP Always works out the exact numbers for you. If something's off, we fix the sizing automatically (size, bleed, trim box) and pinpoint exactly where anything else needs a look, so you can fix it and recheck for free until it passes.

No. We never keep a copy of your file. It's checked in memory and never saved to disk, and we don't share it with anyone.

Yes. KDP Always supports both paperback and hardcover, and the KDP template generator makes a template for each.

Books that read left to right, such as English. Right-to-left books (for example Japanese, Hebrew, and Yiddish) aren't supported yet, and the specs we check follow kdp.amazon.com.