Skip to main content

Ruler

A ruler at real size, in inches or centimetres.

Ruler

To make it true size, hold a credit card against the bar below and drag until they are the same width.

Kept in this browser so you only do it once. A card is 85.6 mm wide.

Runs in your browser: what you type or paste here is never sent to Hominin. You can also search for it: ruler online.

More in Tests for your devices