Disclaimer

Measurements are approximate

An on-screen ruler can only be as accurate as the screen it's shown on. Results depend on the device, its display settings, browser zoom, whether the ruler has been calibrated, and how carefully the object is lined up. Even after calibration, expect small differences from a physical ruler.

Don't use the tools on this site for medical, engineering, construction, legal or any other measurement where an error could cause injury, damage or financial loss. Use a properly calibrated physical instrument instead.

Guides and articles

The blog posts are general information, written carefully but without any guarantee. Size charts in particular, such as ring sizes, vary between manufacturers. Check with the seller before buying.

Advertising and external links

The site may display ads and links to other websites. These are not endorsements, and we are not responsible for the products, services or content of third parties.

Questions

If you think something on the site is wrong, please tell us at contact@rulernow.com.