# Calibration Checkerboard Collection

These checkerboards are made to be used with camera calibration tools such as the camera_calibration package for ROS. Click on the desired checkerboard to download the PDF version suitable for printing. Make sure that any page scaling or automatic page fitting features are disabled when printing otherwise the dimensions of the checker squares will be incorrect.

## 8x6 Checkerboards

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

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

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

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

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

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

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

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

## A4 Checkerboards

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

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

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

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

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

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

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

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

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

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

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

## A3 Checkerboards

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

## A2 Checkerboards

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

## A1 Checkerboards

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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