MAGCalc Expansion
Expansion vessel sizing
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Quickly estimate expansion vessel size, pre-charge and fill pressure directly on iPhone and iPad.
MAGCalc is a compact calculation aid for heating, HVAC and service technicians.
Features:
- Size heating expansion vessels for water-based systems
- Estimate water expansion from system volume and temperature
- Convert static height into pressure
- Calculate suggested pre-charge and fill pressure
- Show the next common vessel size
- German and English
- Works offline
MAGCalc Pro permanently unlocks manual expansion sizing for glycol, solar fluids and special media with a one-time In-App Purchase.
Important:
MAGCalc is a calculation aid for trained professionals. Manufacturer data, applicable standards, safety components, system design and actual measurements always take precedence.
EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Piotr Kaminski, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Piotr Kaminski
- Size
- 547.8 KB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- MAGCalc Pro $3.99
- Copyright
- © 2026 Piotr Kaminski