Circle Calculator - Geometry
Radius, Area, Arc & DXF
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Enter one value, see every circle result, then turn workshop measurements into coordinates and professional exports.
Enter one value and instantly calculate radius, diameter, circumference and area. The live measured diagram updates with your inputs, while formula explanations help you understand the result.
CIRCLE AND GEOMETRY TOOLS
• Circle, arc, sector, segment, chord and annulus
• Polygon, triangle, sphere and cylinder measurements
• Unit, angle and precision controls
WORKSHOP PROBLEM SOLVING
• Bolt Circle (PCD) with X/Y drill coordinates
• Offline DN/NPS pipe schedule dimensions and weights
• Metal stock weight before cutting
• Cone flat patterns and pipe templates
SAVE AND EXPORT
Keep calculation history and favourites on your device. Eligible Pro workflows create PDF, CSV and DXF outputs for professional work.
OFFLINE-READY CORE
Core calculations and bundled pipe charts work without an internet connection. Purchases, advertising, support links and sharing can require a connection.
FREE AND PRO
Existing free calculators remain available. Pro adds selected workshop exports, advanced workflows, expanded history and an ad-free experience. The App Store shows current plans, trials and local prices before purchase.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Maintenance update with updated purchase infrastructure, compatibility improvements, and stability refinements.
The developer, AHMET DEMIR, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- AHMET DEMIR
- Size
- 75.1 MB
- Category
- Education
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Circle Calculator Pro Lifetime USD 59.99
- Circle Pro Annual USD 59.99
- Circle Pro Monthly USD 9.99
- Circle Pro Weekly USD 4.99
- Circle Pro Annual USD 29.99
- Circle Pro Monthly USD 4.99
- Circle Pro Weekly USD 1.99
- Copyright
- © 2026 Ahmet Demir