Online Ruler

Printable Ruler — 30 cm & 12 inch

Print at 100% scale • No scaling / Fit to page OFF. Check the credit card outline (85.60 mm) after printing — if it matches, the ruler is exact.

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Print this page
A4 & Letter — browser print
How to ensure 100%
  1. Set Scale = 100% in print dialog
  2. Uncheck “Fit to page”
  3. Measure card box below after print
Cut-out ruler — 0–30 cm (top) / 0–12 inch (bottom)
051015202530 cm
024681012 inch
Credit card 85.60 × 53.98 mm — must match
If this box equals your card, printing is correct. Then measure.