This app simplifies calculating the circumference of circles. It's a useful tool for students to check their math work in educational settings.
Circumference Finder by Rick Kolluri

208+ iOS apps curated and reviewed
Out of 208+ circumference finder apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

This app simplifies calculating the circumference of circles. It's a useful tool for students to check their math work in educational settings.






This utility app provides a straightforward way to calculate circle properties. Simply input one known value (radius, diameter, circumference, or area) to instantly get the results for the others. It's designed for quick and no-fuss calculations.





This app functions as a digital measuring tool, allowing you to measure objects and distances with accuracy. It also enables you to create sketches with text annotations and share your measurements and designs.


This educational tool quickly calculates circumference, area, and diameter of a circle. It's designed for students to save time on manual calculations with a simple, user-friendly interface.


This app transforms your phone into a precise leveling tool. It offers accurate angle measurement, inclination detection, and augmented reality features for DIY and professional use. Calibration is simple and quick.


Measure distances using your device's camera without relying on GPS. Compare object sizes to estimate distances quickly and simply.


Calculate distances between points and areas of polygons on a map. Supports metric and imperial units, GPS location, and freehand drawing. Altitude calculation is also available, with or without data connectivity.


Easily determine your ring size at home using your finger or an existing ring. Get results in multiple international sizing systems instantly. Save your measurements for future reference.


This application helps you accurately measure ring and finger sizes without the need for physical tools. It offers a user-friendly interface and supports various measurement systems for precise results, making online jewelry shopping easier.


Easily determine your ring size across multiple countries using metric or imperial units. Features visual guides and supports various international sizing standards. Share your size and explore a jewelry catalog.


Transform your device into a versatile digital toolkit for precise measurements. Create 2D and 3D floor plans, scan rooms, and measure distances with advanced AI and computer vision. Ideal for DIY projects, home renovations, and professional use.


This app offers precise measurements using augmented reality and on-screen tools. It caters to both professional and everyday needs with features like a flexible measuring tape, bubble level, and photo ruler. Save and manage your measurements within projects for easy access.


Transform your smartphone into a precise digital measuring tape. Measure objects, size furniture, and scan rooms in 3D using augmented reality. Supports multiple units and allows saving/sharing measurements.


This utility app measures angles, checks surface flatness, and provides real-size measurements using your phone's sensors. It's ideal for home improvement, DIY projects, and educational purposes, offering accurate results offline with an intuitive interface.


Measure lengths and distances in the real world using your device's camera. Supports single line, chained measurements, and perimeter calculations. Customize measurements with different colors.


This app is a comprehensive offline navigation tool for outdoor and off-road adventures. It combines a high-tech compass, GPS receiver, and augmented reality display with numerous tools for tracking, measuring, and celestial observation.


Estimate distances to objects using your iPhone's camera. Simply take a photo, identify the object's height or width, and the app calculates the range. Useful for activities like golfing and shooting sports.


Measure objects and spaces using your device's camera with augmented reality. This app offers tools for measuring lengths, heights, areas, and creating floor plans. Save and share your measurements for various projects.


Measure angles precisely using your device's sensors. It functions as both a protractor and a 3D angle meter, allowing you to determine angles between surfaces or lines on a plane with high accuracy. Save your measurements by taking photos with the angle recorded.

