A3 1-Cycle Semi-Log Graph Paper PDF
A3 portrait | 1 logarithmic cycle | Blue grid
A3 semi-log paper
A3 2-Cycle Semi-Log Graph Paper PDF
This A3 template keeps the horizontal axis linear and divides the vertical logarithmic axis into 2 cycles. It can represent two orders of magnitude, for example 1 to 100, on a 297 x 420 mm page.
- Paper
- A3 / Portrait
- Format
- PDF / PNG
- Log scale
- Vertical / Base 10
- Range
- 2 cycles
Template details
About this portrait A3 2-cycle semi-log grid
A3 provides twice the area of A4 while staying within the standard ISO A-series used for drawings, plans, and larger worksheets. This template keeps the horizontal X-axis linear with 10mm spacing and uses a base-10 logarithmic scale on the vertical Y-axis.
2 cycles cover two orders of magnitude, for example 1 to 100. The plotting area is 277 x 400 mm, and each logarithmic cycle occupies approximately 200 mm.
- Paper size
- 297 x 420 mm (11.69 x 16.54 in)
- Plotting area
- 277 x 400 mm
- Logarithmic range
- two orders of magnitude
- Log cycle length
- 200 mm
Why use A3 2-cycle semi-log paper?
Two-cycle semi-log paper suits growth, decay, and measurement data spanning two tenfold ranges.
Exponential growth and decay
Plot population growth, bacterial growth, radioactive decay, cooling curves, and other data where equal ratios matter more than equal differences.
Science and engineering measurements
The 2-cycle logarithmic axis helps spread values across two orders of magnitude, while the other axis remains linear for time, distance, frequency, or another regular variable.
Wide-range plots on A3
A3 is suited to engineering sketches and larger diagrams. The page leaves room for titles, axis labels, units, plotted points, and notes around the grid.
A3 vs Tabloid (11 x 17) 2-cycle semi-log paper
Both formats use the same base-10 structure and 2 cycles. Choose A3 for engineering sketches and larger diagrams; choose Tabloid (11 x 17) when large handouts, plans, and presentation sheets better matches the printer or project.
Open Tabloid (11 x 17) 2-cycle semi-log paper →| Comparison | A3 | Tabloid (11 x 17) |
|---|---|---|
| Page size | 297 x 420 mm (11.69 x 16.54 in) | 11 x 17 in (279.4 x 431.8 mm) |
| Plotting area | 277 x 400 mm | 259.4 x 411.8 mm |
| Each log cycle | 200 mm | 205.9 mm |
| Linear 10mm intervals | 27 | 25 |
Print A3 semi-log paper at the correct scale
Use the PDF when accurate spacing matters. The logarithmic subdivisions and stated physical measurements are preserved when the correct paper and scale settings are selected.
- 1
Load A3 paper
Load 297 x 420 mm paper and select A3 as the paper size in the print dialog.
- 2
Use Actual Size
Select Actual Size or 100% scale. Turn off Fit, Shrink, and Scale to Page options.
- 3
Match portrait orientation
Keep the print dialog set to portrait so the graph is not rotated or reduced automatically.
- 4
Check the linear axis
Measure two neighboring lines on the horizontal X-axis; they should be 10mm apart.
More A3 Semi-Log Graph Paper Templates
8 ready-made templates are available for this paper size.
A3 Landscape 1-Cycle Semi-Log Graph Paper PDF
A3 landscape | 1 logarithmic cycle | Blue grid
A3 2-Cycle Semi-Log Graph Paper PDF
A3 portrait | 2 logarithmic cycles | Blue grid
A3 Landscape 2-Cycle Semi-Log Graph Paper PDF
A3 landscape | 2 logarithmic cycles | Blue grid
A3 3-Cycle Semi-Log Graph Paper PDF
A3 portrait | 3 logarithmic cycles | Blue grid
A3 Landscape 3-Cycle Semi-Log Graph Paper PDF
A3 landscape | 3 logarithmic cycles | Blue grid
A3 4-Cycle Semi-Log Graph Paper PDF
A3 portrait | 4 logarithmic cycles | Blue grid
A3 Landscape 4-Cycle Semi-Log Graph Paper PDF
A3 landscape | 4 logarithmic cycles | Blue grid
FAQ
Answers specific to using and printing 2-cycle semi-log graph paper on A3.
What range can 2 cycles represent?
2 cycles span two orders of magnitude. A common example is 1 to 100, but the same paper can begin at another power of ten, such as 0.1, 10, or 100.
Which axis is logarithmic on this template?
The vertical Y-axis is logarithmic and the horizontal X-axis uses regular 10mm spacing. Use the custom generator if you need the logarithmic scale on the other axis.
How do I label a semi-log axis?
Assign each major cycle boundary a power of ten that covers your data. Within each cycle, the minor lines represent 2 through 9 times the value at the start of that cycle.
Which print setting keeps the graph true to size?
Select A3 paper, use Actual Size or 100% scale, and disable Fit to Page. The regular lines on the linear axis should remain 10mm apart.
Should I use portrait or landscape A3 semi-log paper?
Portrait gives the vertical logarithmic axis more physical room per cycle. Landscape gives the linear horizontal axis more room for time points, labels, and long data series.