Use of the tool
You may use the public measurement tools for personal, educational and ordinary commercial tasks. Do not attempt to disrupt the service, bypass security controls or automate abusive traffic.
Accuracy
Physical measurement depends on calibration, display hardware, zoom and system scaling. Verify important dimensions with suitable physical equipment. 1Ruler is not intended for legal-for-trade, medical, engineering safety or other regulated measurements.
Availability
Features may be changed to improve reliability, accessibility or security. Continued use of the site after a terms update means you accept the revised terms.