About log-log graph paper
Log-log paper handles power laws and data that spans many orders of magnitude on both axes. Scaling laws, Bode-style plots and calibration curves all come out as straight lines you can read off directly.
Both axes are logarithmic, so power-law relationships of the form y = a·xⁿ plot as straight lines and the exponent falls straight out of the slope. Engineers and physicists use it for scaling laws, calibration curves and frequency-response sketches.
Set the number of decades on each axis to cover your data. Because both scales repeat the 1–9 log spacing, values several orders of magnitude apart stay readable on a single page.
Great for
- Power-law relationships
- Engineering and physics plots
- Scaling and calibration curves
- Frequency-response sketches
Common questions
When should I use log-log instead of semi-log?
Use log-log when both variables span wide ranges or you expect a power law; use semi-log when only one variable grows exponentially.
How do I read the exponent?
On log-log axes a power law is a straight line, and its slope equals the exponent in y = a·xⁿ.
Guides for this paper
Printing at the right size
Every sheet is drawn in real units, so it prints true to size as long as you print at 100%. In the print dialog, set the scale to 100% and turn off “Fit to page” or “Shrink oversized pages” — then a 5 mm square really measures 5 mm. Download a vector SVG to edit later, a PNG at up to 600 dpi, or a ready-to-print PDF. Everything is generated in your browser, nothing is uploaded, and every sheet is free to print for personal, classroom and commercial use. See the guide to printing at true size or the FAQ for more.