Measurement (5)

Screen ruler with calibration, protractor, percentage calculator, and screen sizing tools.

Actual size screen ruler in cm, mm, and inches with credit-card calibration slider.

Measure angles, slopes, and degrees directly on screen using an interactive protractor.

Quickly calculate percentages, discounts, tax, and percentage increase or decrease.

Detect your screen resolution, pixel ratio, viewport size, and color depth.

Measure your internet connection ping latency, download bandwidth, and jitter in real-time.