How long is 8 inches?

Eight inches equals 20.32 centimeters.

8 inch at actual size

0 8
8 inches
Calibrated Actual Size · 96 PPI · Calibrate screen

Accurate after calibration. Approximate before calibration.

Conversions

8 inches
20.32 cm
203.2 mm
0.667 ft

How long is 8 inches compared to an object?

1

8-Inch Chef's Knife Blade

About 8 inches

An 8 inch chef's knife is the mid-size in the range, between a 6 inch and a 10 inch blade. It is a general purpose knife for chopping, slicing and dicing.

2

Standard Round Cake Pan

About 8 inches

An 8 inch round cake pan is one of the two most common sizes, with 9 inches. It bakes about 6 cups of batter.

3

8-Inch Adjustable Wrench

About 8 inches

An 8 inch adjustable wrench covers nuts and bolts up to about 3/4 inch across the jaw. Adjustable wrenches are usually sold in 6, 8, 10 and 12 inch lengths.

4

Standard Dressmaker's Shears

About 8 inches

Dressmaker's shears run 8 to 10 inches, against 5 to 7 for household scissors. The longer blade cuts fabric in longer strokes with fewer strokes.

5

Original 8-Inch Floppy Disk

About 8 inches

The 8 inch floppy disk, the 1.2MB version, was the size that made them common. The 3.5 inch disk replaced it in the 1990s.

6

Standard Splash Cymbal

About 8 inches

An 8-inch splash cymbal decays almost as soon as it is struck, which is why it sits above the toms rather than in their place. It is a jazz and rock effect cymbal, not a ride.

7

Small Lunch Paper Plate

About 8 inches

A small paper plate is 8 inches, a step up from the 6 inch and 7 inch sizes. It fits a sandwich and a small side.

8

8-Inch Tablet Screen

About 8 inches

An 8 inch tablet is measured corner to corner, and is smaller than the 10 inch iPad. Most 8 inch tablets are Android or Amazon Fire.

9

Standard Handheld Tambourine

About 8 inches

A tambourine is measured by diameter across the head, and 8 inches is a common size. The sizes in use run from about 6 to 16 inches.

10

8-Inch Masonry Trowel

About 8 inches

An 8 inch masonry trowel is a working size for spreading mortar. Smaller 4 and 6 inch trowels are for finishing and tight corners.

Frequently asked questions about 8 inches

Is 8 inches close to A4 paper?

Very: A4 is 8.27 inches wide and US letter is 8.5 inches wide, so 8 inches sits just under one sheet's width either way.

How does 8 inches compare to a tablet?

Compact tablets such as the iPad mini use a 7.9-inch screen measured diagonally, so 8 inches is a hair more than a small tablet's diagonal.

How many centimeters is 8 inches?

20.32 centimeters.

What can I use to check 8 inches?

A US letter sheet is 8.5 by 11 inches: lay its short edge along the ruler and the 8-inch mark sits half an inch inside the paper.

Page last updated 2026-10-02

Chetan Kumar, creator of How Long Is an Inch?

Hi, I'm Chetan Kumar — an SEO specialist from India, and I own and maintain this site. I built it after ordering a 7-inch burrito and realising I had no idea how long 7 inches actually was. Everything runs in your browser — no app, no install, no sign-up — and every measurement method is documented. Spotted a mistake? Email me and I'll fix it. More: About | How We Measure | Email | GitHub

Last updated: November 2026