Free camera calibration checkerboards for computer vision research and robotics applications. Compatible with OpenCV, ROS camera_calibration, and other computer vision libraries. Download high-quality PDF checkerboards in A4, A3, A2, and A1 formats with no watermarks or advertising - completely free for academic and commercial use.

✨ Features:

  • 100+ pre-made checkerboards in multiple sizes and formats
  • Interactive generator for custom dimensions
  • Perfect for stereo vision and camera calibration workflows
  • High precision - accurate dimensions for reliable calibration
  • Instant download - no registration required

TIP: Make sure to disable any page scaling or automatic page fitting features when printing otherwise the checker dimensions will be incorrect.

Generate Your Own Checkerboards

Generates Scalable Vector Graphic (SVG) files, which can be edited using free software such as Inkscape.

WARNING: Your browser may become unresponsive if the dimensions become too extreme

mm
mm
mm
📋 Generated Checkerboard:
💾 Click image above to download as SVG
📄 How to Save as PDF:
  1. Click the generated checkerboard above to download as SVG
  2. Open the downloaded file in your browser
  3. Print the document (File → Print or Ctrl+P)
  4. Select "Save as PDF" as destination
  5. Set scale to 100% (uncheck "Fit to page") and disable headers/footers
  6. Choose destination and save your PDF
⚠️ Important: Disable page scaling when printing - incorrect scaling will make calibration inaccurate!

🔥 Most Popular Downloads

8x6 Checkerboards

A4 - 25mm squares - 8x6 vertices, 9x7 squares

A4 - 30mm squares - 8x6 vertices, 9x7 squares

A3 - 35mm squares - 8x6 vertices, 9x7 squares

A3 - 40mm squares - 8x6 vertices, 9x7 squares

A2 - 55mm squares - 8x6 vertices, 9x7 squares

A2 - 60mm squares - 8x6 vertices, 9x7 squares

A1 - 75mm squares - 8x6 vertices, 9x7 squares

A1 - 80mm squares - 8x6 vertices, 9x7 squares

A4 Checkerboards

A4 - 20mm squares - 13x9 vertices, 14x10 squares

A4 - 25mm squares - 10x7 vertices, 11x8 squares

A4 - 30mm squares - 8x6 vertices, 9x7 squares

A4 - 35mm squares - 7x4 vertices, 8x5 squares

A4 - 40mm squares - 6x4 vertices, 7x5 squares

A4 - 45mm squares - 5x3 vertices, 6x4 squares

A4 - 50mm squares - 4x2 vertices, 5x3 squares

A4 - 55mm squares - 4x2 vertices, 5x3 squares

A4 - 60mm squares - 3x2 vertices, 4x3 squares

A4 - 65mm squares - 3x2 vertices, 4x3 squares

A4 - 70mm squares - 3x2 vertices, 4x3 squares

A3 Checkerboards

A3 - 20mm squares - 19x13 vertices, 20x14 squares

A3 - 25mm squares - 15x10 vertices, 16x11 squares

A3 - 30mm squares - 12x8 vertices, 13x9 squares

A3 - 35mm squares - 10x7 vertices, 11x8 squares

A3 - 40mm squares - 8x6 vertices, 9x7 squares

A3 - 40mm squares - 9x6 vertices, 10x7 squares

A3 - 45mm squares - 8x5 vertices, 9x6 squares

A3 - 50mm squares - 7x4 vertices, 8x5 squares

A3 - 55mm squares - 6x4 vertices, 7x5 squares

A3 - 60mm squares - 5x3 vertices, 6x4 squares

A3 - 65mm squares - 5x3 vertices, 6x4 squares

A3 - 70mm squares - 4x3 vertices, 5x4 squares

A3 - 75mm squares - 4x2 vertices, 5x3 squares

A3 - 80mm squares - 4x2 vertices, 5x3 squares

A3 - 85mm squares - 3x2 vertices, 4x3 squares

A3 - 90mm squares - 3x2 vertices, 4x3 squares

A3 - 95mm squares - 3x2 vertices, 4x3 squares

A2 Checkerboards

A2 - 20mm squares - 28x19 vertices, 29x20 squares

A2 - 25mm squares - 22x15 vertices, 23x16 squares

A2 - 30mm squares - 18x13 vertices, 19x14 squares

A2 - 35mm squares - 15x11 vertices, 16x12 squares

A2 - 40mm squares - 13x9 vertices, 14x10 squares

A2 - 45mm squares - 12x8 vertices, 13x9 squares

A2 - 50mm squares - 10x7 vertices, 11x8 squares

A2 - 55mm squares - 9x6 vertices, 10x7 squares

A2 - 60mm squares - 8x6 vertices, 9x7 squares

A2 - 65mm squares - 8x5 vertices, 9x6 squares

A2 - 70mm squares - 7x4 vertices, 8x5 squares

A2 - 75mm squares - 6x4 vertices, 7x5 squares

A2 - 80mm squares - 6x4 vertices, 7x5 squares

A2 - 85mm squares - 5x3 vertices, 6x4 squares

A2 - 90mm squares - 5x3 vertices, 6x4 squares

A2 - 95mm squares - 5x3 vertices, 6x4 squares

A2 - 100mm squares - 4x3 vertices, 5x4 squares

A2 - 105mm squares - 4x3 vertices, 5x4 squares

A2 - 110mm squares - 4x2 vertices, 5x3 squares

A2 - 115mm squares - 4x2 vertices, 5x3 squares

A2 - 120mm squares - 3x2 vertices, 4x3 squares

A2 - 125mm squares - 3x2 vertices, 4x3 squares

A2 - 130mm squares - 3x2 vertices, 4x3 squares

A2 - 135mm squares - 3x2 vertices, 4x3 squares

A2 - 140mm squares - 3x2 vertices, 4x3 squares

A1 Checkerboards

A1 - 20mm squares - 41x28 vertices, 42x29 squares

A1 - 25mm squares - 32x22 vertices, 33x23 squares

A1 - 30mm squares - 27x18 vertices, 28x19 squares

A1 - 35mm squares - 23x15 vertices, 24x16 squares

A1 - 40mm squares - 20x13 vertices, 21x14 squares

A1 - 45mm squares - 17x12 vertices, 18x13 squares

A1 - 50mm squares - 15x10 vertices, 16x11 squares

A1 - 55mm squares - 14x9 vertices, 15x10 squares

A1 - 60mm squares - 13x8 vertices, 14x9 squares

A1 - 65mm squares - 11x8 vertices, 12x9 squares

A1 - 70mm squares - 11x7 vertices, 12x8 squares

A1 - 75mm squares - 10x6 vertices, 11x7 squares

A1 - 80mm squares - 8x6 vertices, 9x7 squares

A1 - 80mm squares - 9x6 vertices, 10x7 squares

A1 - 85mm squares - 8x5 vertices, 9x6 squares

A1 - 90mm squares - 8x5 vertices, 9x6 squares

A1 - 95mm squares - 7x5 vertices, 8x6 squares

A1 - 100mm squares - 7x4 vertices, 8x5 squares

A1 - 105mm squares - 7x4 vertices, 8x5 squares

A1 - 110mm squares - 6x4 vertices, 7x5 squares

A1 - 115mm squares - 6x4 vertices, 7x5 squares

A1 - 120mm squares - 6x4 vertices, 7x5 squares

A1 - 125mm squares - 5x3 vertices, 6x4 squares

A1 - 130mm squares - 5x3 vertices, 6x4 squares

A1 - 135mm squares - 5x3 vertices, 6x4 squares

A1 - 140mm squares - 5x3 vertices, 6x4 squares

A1 - 145mm squares - 4x3 vertices, 5x4 squares

A1 - 150mm squares - 4x2 vertices, 5x3 squares

A1 - 155mm squares - 4x2 vertices, 5x3 squares

A1 - 160mm squares - 4x2 vertices, 5x3 squares

A1 - 165mm squares - 4x2 vertices, 5x3 squares

A1 - 170mm squares - 3x2 vertices, 4x3 squares

A1 - 175mm squares - 3x2 vertices, 4x3 squares

A1 - 180mm squares - 3x2 vertices, 4x3 squares

A1 - 185mm squares - 3x2 vertices, 4x3 squares

A1 - 190mm squares - 3x2 vertices, 4x3 squares