JB1
728 mm
1030 mm
What Size Is JB1 Paper?
JB1, part of the JIS B Series under the Japanese Paper Sizes group, measures 728 x 1030 mm, which is 72.8 x 103.0 cm or approximately 28.66 x 40.55 inches. It follows the JIS P 0138 specification and has an area of approximately 0.7498 m².
JB1 Paper Size Dimensions & Conversions
Paper Series
JIS B Series
Standard
JIS P 0138
Width
728 mm
Height
1030 mm
Area
0.7498 m²
Aspect Ratio
1:1.415
Previous Size
JB0
Next Size
JB2
JB1 Dimensions in Different Units
| Unit | Width | Height |
|---|---|---|
| Millimeters | 728 mm | 1030 mm |
| Centimeters | 72.8 cm | 103.0 cm |
| Inches | 28.66 in | 40.55 in |
| Feet | 2.39 ft | 3.38 ft |
| Meters | 0.728 m | 1.03 m |
| Points | 2064 pt | 2920 pt |
| Picas | 172.0 pc | 243.3 pc |
What Is JB1 Paper Used For?
Printing in Japan
This size is part of Japan's JIS paper standard, used for documents, books, and printing.
Design and Layout
Designers and print professionals use JB1 when a layout calls for this specific format.
Reproduction and Scaling
JB1 can be scaled up or down to produce related sizes in the same series.
Presentations and Displays
JB1 is suitable for boards, handouts, or displays sized to this format.
Archiving and Filing
Printed materials in JB1 are stored and filed using standard folders sized for this format.
Digital Reference
JB1 dimensions are used as a page-size preset in design and publishing software.
Related JIS B Series Sizes
Frequently Asked Questions
What is JB1 size in inches?
JB1 measures approximately 28.66 x 40.55 inches.
What is JB1 size in centimeters?
JB1 measures 72.8 x 103.0 cm.
What is JB1 size in millimeters?
JB1 measures 728 x 1030 mm.
What is JB1 size in pixels?
At 300 DPI, JB1 is approximately 8598 x 12165 pixels.
Is JB1 bigger than JB2?
Yes. JB1 is larger in area than JB2 in the Japanese Paper Sizes series.