Zentralabel LogoZentralabel
Start Free
Free Calculator

ZPL DPI &
Label Size Calculator

Convert label dimensions between inches, millimetres, and printer dots at 203, 300, and 600 DPI — and get the exact ^PW and ^LL values to use in your ZPL. No sign-up required.

Width
Height
Common presets

At 203 DPI, your 4.00 × 6.00 in label is:

Width in dots
812
Height in dots
1,218
Width (mm)
101.6 mm
Height (mm)
152.4 mm
Total pixels/dots
989,016
Print density
203 DPI
ZPL header for this size
^XA
^PW812
^LL1218
^FO20,20^A0N,40,40^FDLabel 4.00x6.00 in @ 203dpi^FS
^XZ

^PW sets the print width in dots, ^LL the label length. Match these to your label stock so nothing is clipped.

—How It Works

Simple. No setup required.

01

Enter your label size

Type the physical width and height, or pick a common preset like 4×6 for Amazon FBA.

02

Choose your DPI

Select 203 DPI (most desktop Zebras), 300 DPI (fine text), or 600 DPI (industrial printers).

03

Copy the ZPL header

Use the generated ^PW and ^LL values in your ZPL so the label prints at the exact size.

—Features

Everything you need. Nothing you don't.

Dots at any density

Instantly see how many dots your label is at 203, 300, or 600 DPI — the number ZPL actually works in.

^PW and ^LL, done for you

Get a ready-to-paste ZPL header with the correct print width and label length so your labels never clip.

Amazon FBA & carrier presets

One-click presets for 4×6 FBA labels, FNSKU product labels, UPS/FedEx thermal, and A6 EU shipping sizes.

Inches, mm, and cm

Work in whatever unit your label stock is sold in — conversions update live as you type.

—FAQ

Frequently asked questions

How many dots is a 4×6 label at 203 DPI?
A 4×6 inch label at 203 DPI is 812 dots wide (^PW812) and 1218 dots tall (^LL1218). 203 DPI equals 8 dots per millimetre, or roughly 203 dots per inch, so 4 × 203 ≈ 812 and 6 × 203 ≈ 1218.
What is the difference between 203 DPI and 300 DPI?
203 DPI (8 dpmm) is the standard resolution for most desktop Zebra printers and Amazon FBA labels. 300 DPI (12 dpmm) packs more dots into the same space, producing sharper small text and fine barcodes — useful for FNSKU labels or dense 2D codes. The same physical label has ~2.2× more dots at 300 DPI.
What do ^PW and ^LL do in ZPL?
^PW sets the print width in dots and ^LL sets the label length (height) in dots. If these don't match your label stock, ZPL content can be clipped on the right edge or run onto the next label. Setting them to the values from this calculator ensures the printer uses the full label.
Do I need to change DPI to convert a label?
No — DPI is a property of the printer, not the file. But if you're rendering a ZPL label to PDF or PNG, choosing the DPI that matches the target printer keeps the output crisp and correctly sized. Zentralabel's converter lets you pick 203, 300, or 600 DPI on export.

Related Tools

Related Guides

Ready for unlimited label processing?

Upgrade to Zentralabel for batch processing, API access, team workspaces, and high-volume exports. Plans from $19/month with a 14-day free trial.

Start 14-Day Free Trial View Plans