Thermal Growth: Offset Calc
Thermal Offset Calculator
Free
Thermal Growth is a fast and accurate thermal expansion calculator for machinists, toolmakers, CNC programmers and inspectors.
Temperature changes affect dimensional accuracy. Thermal Growth computes the precise size adjustment required to hit your target dimension at the reference temperature.
Features
• Calculate thermal expansion offsets using standard engineering formulas
• Supports steels, aluminium alloys, titanium, copper, brass, tool steels and polymers
• Works across –273°C to 2500 °C
• Adjustable reference temperature (default 20 °C)
• Supports metric (mm/°C) and imperial (inch/°F)
• Large, clear result with full calculation breakdown
• Fully offline — ideal for workshop or inspection environments
• Clean, workshop-friendly interface with dark and light mode
• Request new materials directly from the app
Material Database Includes
• Aluminium alloys (2014, 2024, 6061, 6082, 7075)
• Non-ferrous metals (Copper, Brass CW505L, Phosphor Bronze, Monel, Nickel, Inconel)
• Tool steels (A2, D2, P20)
• Polymers (Acetal/Delrin, PEEK, ABS and filled grades)
• Additional materials added regularly
Designed for Machinists
Whether turning, grinding, milling or inspecting tight-tolerance components, Thermal Growth gives you the correct temperature-compensated dimension instantly.
Ad-Supported with No Tracking
A small AdMob banner supports development.
No analytics, no tracking and no personal data collection.
Ratings & Reviews
• Temperature input is now manual, with a wider supported range
• Major expansion of the material library
• New material description cards for clearer material selection
• General usability and polish improvements
The developer, Revoroute Ltd, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Revoroute Ltd
- Size
- 21.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later.
- iPhone
- Languages
English and 13 more
- English, Czech, Danish, Dutch, Finnish, French, German, Italian, Norwegian Bokmål, Polish, Portuguese, Slovenian, Spanish, Swedish
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © Revoroute Ltd 2025