Measure device dimensions with a ruler tool that displays millimeters and inches. Tap to mark start and end points. Switch between metric and imperial units. Share measurement results directly.
by Mayumi Kato★ 5.02 ratingsUtilitiesFreeData updated 2026-09-11
Convert units between inches and centimeters instantly. Enter numbers to get immediate conversions. Save calculations for future reference. Share results directly. Perform quick and accurate measurements without additional steps.
Measure areas and distances on maps by placing points and calculating the total or route length. Save and share specific locations as points of interest. Calculate GPS areas with high accuracy.
Calculate , suspension cable, and civil parameters with 58 specialized tools. Input values and units to get automatic results. Switch between metric and imperial units.
Measure sound levels with a precision noise meter, including OSHA/NIOSH compliant dosimetry and impulsive noise detection. Display live spectrum and capture measurement snapshots. Email results and access hearing protection guidance.
Calculate BMI using metric or imperial units. Input height and weight to receive a score and classification. View BMI history and track changes over time. No ads or paid features.
Convert units across 6 categories including volume, weight, temperature, area, and more. Switch between metric and imperial systems. Input values manually or scan text for automatic conversion. Share results via copy or email.
Calculate material quantities for landscaping projects by entering dimensions and selecting materials. Generate take-offs for gravel, soil, mulch, and concrete in cubic yards or meters. Export estimates and track project costs.
Control lights remotely via Apple Watch. Use spirit level, compass, and ruler for measurements. Access flashlight with sound effects. All are free and easy to use.
The app sizes HVAC duct runs or a range of duct sizes using the constant friction method. Users can input airflow, dimensions, or a range of sizes to calculate results in English or Metric units.
Measure and analyze satellite signals using real-time spectrum analysis. Detect LNB skew and satellite position with GPS data. Communicate via Bluetooth with a patented device for signal measurement without additional equipment.
Measure ambient instantly with live EV feedback. Adjust aperture, shutter speed, and ISO for accurate exposure. Save and compare readings over time. Sync measurements with other devices for consistent results.
Calculate pitch and geometrical lengths for Hip and Valley, Splayed End Hip, Hexagonal, and Octagonal roofs. Zoom in on designs. Email calculations and diagrams. Switch between imperial and metric units.
Measure distances, angles, and colors on any screen. Capture and analyze screen elements for design, development, or navigation tasks. Save and share measurement data directly.
The app calculates new image dimensions while maintaining aspect ratio to prevent distortion. It offers fraction and percent modes, and an image scale tool for precise pixel sizing with a preview.