Measure with a ruler activity
Create true-scale measurement lines with an answer key and 100 mm and 1 in calibration bars.
Up to 16 measurement lines on A4 or US Letter. Lengths are bounded by the selected unit and page layout. Print at 100% actual size with page scaling off, then measure both calibration bars. Printer scaling and physical output are not verified by the tool. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use Measure with a ruler activity
- Choose millimetres, centimetres or an inch fraction, then set the measurement range.
- Choose the number of lines, paper size and seed.
- Generate, then download the PDF and SVG worksheets, answer-key CSV and JSON report.
- Print at 100% actual size with page scaling off and measure the 100 mm and 1 in calibration bars.
Useful next steps
Up to 16 measurement lines on A4 or US Letter. Lengths are bounded by the selected unit and page layout. Print at 100% actual size with page scaling off, then measure both calibration bars. Printer scaling and physical output are not verified by the tool.
Print scale
The worksheet geometry is generated in millimetres. Printer settings can scale the page, so select 100% actual size with page scaling off.
Check calibration
Measure the printed 100 mm and 1 in bars before using the worksheet. The browser cannot verify printer output.
Repeat a worksheet
A seed reproduces the same measurement lengths. The answer key is available separately as CSV.