Convert pattern repeat size between cm and inches, count how many tiles fit on a fabric panel, and compute required pixels at a target DPI. A free B2B helper for textile print and production teams.
Repeat presets
Repeat size
Tiles on fabric panel
Live tile preview (capped at 64 cells for clarity)
Print pixels at DPI
Repeat prep before pattern generation
Lock repeat size in the tech pack
Paste the cm ↔ inch conversion and tile count from this tool into PO approval notes. Size seamless repeats in the Generator against the same rapport values.
Plan tiles against the fabric panel
The tile grid rows × columns shows how many repeats fit the panel. Tune pattern density to that grid — excess detail gets lost in small tiles.
Build seamless art after rapport lock-in
Once repeat cm/inch and target DPI px are clear, create tile-safe designs in AI Pattern Studio with the same palette. Verify edge alignment with Seamless Checker.
Paste the cm ↔ inch conversion, tile counts and DPI pixel line from this tool into sample approval notes. Wrong repeat scale in mockups causes motif drift on templates.
Validate tile placement in Mockup Studio for the fabric panel
Panel width/height and rapport should be evaluated together — scarf and home textile templates may not fit whole tiles. Match scale/rotate steps in the mockup guide to these lines.
Open the print PO after buyer approval
After mockup visual sign-off, move the repeat line from this calculator into production; audit mockup credits/cost on Account History.
Repeat lock-in prep before upscaling to print size
Lock cm/inch repeat on the tech pack
Paste approved repeat width × height from this tool into the tech pack. cm ↔ inch conversion and tile counts on the panel must be fixed before PO signature — wrong rapport misaligns seams after upscaling.
Calculate print pixels at target DPI
Save the width × height px line from this tool before upscaling. The 16x pipeline caps at 16K px output — validate 300+ DPI at final print size before upscaling low-source drafts.
Move tile-safe art into Upscale Studio
Seamless rapport files upscale best with tile-safe mode. Max output side is 16,384 px — read the Upscale quality guide for the SSIM ≥ 0.85 threshold; audit upscale credits/cost on Account History.
Repeat (rapport) size drives how a seamless design tiles across fabric width, waste ratio, and RIP output pixels. The same artwork may be listed in cm on TR/EU tech packs and inches on US POs. This tool standardizes units and speeds panel planning.
Professional workflows triple-check repeat: artwork file, tech-pack line and strike-off print. After shrinkage, use the Shrinkage Calculator for effective panel size; the Fabric Cost Calculator for meter pricing; the Panel Pixel Planner for large RIP layouts; the DPI Calculator for mesh/DPI validation; and the Seamless Checker for tiling proof.
SapphireSC (sapphiresc.com) is the B2B AI platform from İlçel Sapphire Tekstil (Bursa): seamless pattern generation, upscale, vectorization and mockups. This free rapport calculator provides real technical content for organic search and AI discovery; production workflows continue in the AI Pattern Generator and Vectorizer.
Common repeat size ranges
15–25 cm (≈ 6–10″) — small floral, ditsy, logo repeats
32–64 cm (≈ 12–25″) — mid-scale all-over, home textile, sportswear (maps to 24″ US standard)
64–150 cm (≈ 25–59″) — large motif, panel prints, upholstery
150 DPI / 300 DPI — strike-off vs production targets; 64 cm @ 300 DPI ≈ 7560 px width
Half-drop and brick repeats need visual offset — confirm full repeat dimensions here first
Quick reference formulas
cm = inch × 2.54
inch = cm ÷ 2.54
Tiles = floor(panel ÷ repeat) per axis; waste = leftover cm
Pixels = inches × DPI (rounded)
Frequently asked questions
What is a pattern rapport (repeat)?
A rapport (repeat) is the unit size before a design tiles again. In digital print and jacquard production it is specified in cm or inches; fabric width planning and waste depend on it.
How do I convert cm and inches?
1 inch = 2.54 cm. Formula: cm = inch × 2.54; inch = cm ÷ 2.54. This tool uses that exact factor.
How is tile count calculated?
Floor(panel width ÷ repeat width) × floor(panel height ÷ repeat height). Leftover length on each axis is shown as waste.
What is 64 cm repeat in inches?
64 cm ÷ 2.54 ≈ 25.2 inches. Mid-scale all-over prints often use 60–64 cm (≈ 24 inch) repeats; a US PO line of 24″ repeat maps to this band.
How many pixels is a 32 cm × 32 cm repeat at 150 DPI?
32 cm ≈ 12.6 inches; 12.6 × 150 ≈ 1890 px per axis (rounded). Digital textile print often targets 150 DPI for strike-offs and 300 DPI for production — validate pixel plans in the Panel Pixel Planner and DPI Calculator.
Does this tool calculate half-drop repeats?
No — this utility plans full-repeat tile grids and waste. Half-drop artwork offset is handled in RIP/Photoshop; confirm the full repeat size in cm/inch here first, then test tiling in the Seamless Checker.
Is this rapport calculator free?
Yes. The repeat-size calculator is free and runs entirely in your browser. Sapphire AI tools such as pattern generation, upscale, and vectorization require an account and credits.