Log-log decades for exponential data, frequency response and pH plots. Every size below is generated as a clean, true-to-scale PDF — pick a paper size or open the editor to customise spacing, colour and margins.
Logarithmic decades on both axes is the natural fit for exponential data, frequency response and pH. Each sheet is drawn as vector lines that print crisply and photocopy cleanly, with the grid held to a tidy margin.
Choose from the full ISO A, ISO B and ISO C series plus US and Imperial sizes — each PDF is built at exact page dimensions, so the pattern prints at its real-world size when you print at 100%.
Yes — every size downloads as a free PDF with no login and no watermark.
The full ISO A (A0–A10), ISO B (B0–B10) and ISO C (C0–C10) series, plus US and Imperial sizes like Letter, Legal, Tabloid and the ANSI and Arch ranges.
For a true-to-size grid, print at 100% scale (turn off "Fit to page" or "Shrink oversized pages"). The PDF is built at exact A4, Letter or A5 dimensions, so 5 mm really measures 5 mm on paper.