Free tattoo stencil tool

Tattoo Stencil Size & Print Calculator

Set an exact physical width or height in cm or inches, or calibrate the stencil from a known span. Then preview paper fit and export a true-size 1:1 PDF.

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Tattoo stencil size and print settings

Upload your stencil

PNG, JPG, or WebP · maximum 20 MBYour image stays in this browser.

Crop to the stencil

Tell the tool what surrounds the stencil so it can ignore outer canvas when sizing. This can crop outside margins, but it does not recolor the artwork or make opaque pixels transparent.

Set the real stencil size

Proportions stay locked. Change either value and the other updates automatically.

15 × 15 cm · 5.91 × 5.91 in

Set real size from two points

Pick two points on a distance you know, enter that real measurement, and the full stencil scales from that span.

Upload a stencil first. Calibration uses the same cropped and rotated artwork that will be printed.

Choose the paper layout

Orientation

Paper layout

Print preview

Print marks on
The paper grid will appear here after you upload a stencil and set its size.

Download a true-size PDF

Use 100% / Actual Size when your print app exposes it. On iPhone, keep the paper size matched and measure the 50 mm scale check before transfer.

Upload a stencil to prepare the PDF.

Exact physical size

Set the real size before you think about print scaling

Choose the scale source that matches what you actually know. If the stencil must be exactly 14 cm wide, set the overall width. If one span inside the artwork must be 8 cm, mark those two endpoints and calibrate from that known distance. Pixels alone do not establish absolute physical size, and a print-menu label such as Actual Size does not choose the tattoo dimensions for you.

01

Upload the finished stencil

02

Set target width or height, or calibrate a known span

03

Choose paper, orientation, margins, and overlap

04

Export the true-size 1:1 PDF

Tiling preserves scale; it does not shrink to one page

If the stencil fits inside the printable area, the PDF uses one page. Larger stencils are divided into overlapping sheets at the same established physical scale. Each marked sheet carries both its page number and row/column position so the assembly order stays explicit after printing.

Print sleeves and back pieces at true size

The PDF fixes page geometry, not the printer

The exported PDF places the stencil at the physical dimensions established here and keeps that scale when it creates additional tiled pages. The printer, driver, browser, or mobile app is a separate stage and can still resize the document. A correct PDF therefore is necessary, but it is not proof that the sheet in your hand is still 1:1.

Diagnose a print that changed size

Before transfer

Verify the paper, not just the print dialog

A 100% or Actual Size label is useful when the print path exposes it, but the physical sheet is the final check. Use one repeatable check before a client-critical stencil.

01

Match the paper

Load the same A4, Letter, A3, or custom format selected for the PDF. A paper-size mismatch can trigger fitting or clipping before the stencil reaches paper.

02

Preserve document scale

When the print dialog exposes scaling, use the option that keeps the PDF at document scale. Avoid Fit, Fill, Scale to Fit, or borderless enlargement when they change the intended output.

03

Print one control copy

For a tiled stencil, print the first marked page before committing the whole set. Keep every later page on the same paper, printer, and settings.

04

Measure before transfer

The 50 mm calibration line must measure exactly 50 mm on paper. Also check one important stencil dimension when the placement is size-critical.

Desktop: Actual Size and Fit are different operations

In print software that exposes both controls, Actual Size means no page scaling while Fit can enlarge or reduce a PDF to the selected printable area. Match the paper first, then preserve document scale. If part of the page cannot physically print, solve the paper or margin problem instead of hiding it with Fit.

iPhone and iPad: let the calibration copy decide

Mobile print controls vary by app and printer. If a percentage or Actual Size control is not shown, do not compensate by resizing the artwork blindly. Match the paper, avoid fit, fill, crop, or borderless enlargement when those controls appear, print one marked page, and measure it. If the scale is wrong and the mobile path gives you no useful control, use a print path that does.

Print from iPhone step by step

Why the design bounds matter

Photos and exported images often include white or transparent canvas around the stencil. The Crop to the stencil control tells the calculator which outer background to ignore when sizing. It can remove outside margins, but it does not recolor the stencil or turn opaque background pixels transparent. If no meaningful border exists, different modes may correctly produce the same preview.

Image resolution at the final print size

The same raster file carries fewer source pixels per physical inch as its print size increases. The calculator reports that effective source sampling so you can inspect fine lines at the intended size. Physical size also changes how close lines read. Use the Fine vs Normal vs Bold line-weight guide before committing the final PDF.

A4 and US Letter are not interchangeable

A4 measures 210 × 297 mm. US Letter measures 215.9 × 279.4 mm. Choose the same format in the calculator that will be loaded in the printer. Mixing the two can trigger fitting, clipping, or a changed physical scale later in the print path.

Margins and overlap solve different problems

Margins reserve space inside each selected sheet. They do not configure a printer's physical non-printable area. Overlap repeats a strip of the design between adjacent pages so a larger stencil can be aligned. Overlap affects multi-page layouts; it does not add size to the finished stencil.

FAQ

Questions about exact-size stencil printing

Yes. The calculator is free to use, does not require an account, and creates the PDF directly in your browser.

Need the stencil first?

Create a cleaner stencil before you size and print it

Use StencilStudio to turn a photo or reference into a stencil draft, then use this free tool to prepare the physical print size.